IN THE SUPREME COURT OF TENNESSEE

AT KNOXVILLE

May 31, 2018 Session

STATE OF TENNESSEE v. ROSEMARY L. DECOSIMO

Appeal by Permission from the Court of Criminal Appeals

Criminal Court for Hamilton County

No. 287934 Paul G. Summers, Senior Judge

___________________________________

No. E2017-00696-SC-R11-CD

___________________________________

In this appeal of a certified question of law, the defendant challenges the constitutionality 

of a statute that imposes a fee upon persons convicted of certain drug and alcohol 

offenses when forensic scientists employed by the Tennessee Bureau of Investigation 

(“TBI”) have conducted chemical tests to determine blood alcohol or drug content. The 

challenged statute earmarks the fees imposed to an intoxicant testing fund, and monies 

within this fund do not revert to the State’s general fund but “remain available for 

appropriation to the [TBI] as determined by the [G]eneral [A]ssembly.” Tenn. Code 

Ann. § 55-10-413(f)(3)(B) (2017). The defendant argues that this statutory scheme

provides TBI forensic scientists with a personal and institutional financial incentive to 

produce blood alcohol test results that secure convictions, which, in turn, increases fees

and funding for the TBI. Relying on Tumey v. Ohio, 273 U.S. 510 (1927); Ward v. Vill. 

of Monroeville, 409 U.S. 57 (1972); and Connally v. Georgia, 429 U.S. 245 (1977), the 

defendant asserts that these financial incentives create an appearance of impropriety and 

deprive her of the federal and state constitutional right to a fair and impartial trial. We

conclude that, under both the federal and state constitutions, the standards of neutrality 

announced in Tumey, Ward, and Connally apply only to persons exercising judicial or 

quasi-judical authority and do not apply to TBI forensic scientists, who do not exercise 

such authority. Furthermore, even if the Tumey standards applied to TBI forensic 

scientists, the defendant’s constitutional claim would fail because, as salaried employees, 

the TBI forensic scientists have no direct, personal, substantial pecuniary interest in fees

imposed pursuant to the statute, and any institutional financial interest the TBI forensic 

scientists may have as a result of the statute is too remote to give rise to an appearance of 

impropriety. We also disagree with the Court of Criminal Appeals’ holding that the 

statute violates substantive due process by creating a situation analogous to an expert

witness contingency fee arrangement. Accordingly, the judgment of the Court of 

Criminal Appeals is reversed, and the judgment of the trial court is reinstated.

08/23/2018
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Tenn. R. App. P. 11 Appeal by Permission; Judgment of the Court of Criminal 

Appeals Reversed; Judgment of the Trial Court Reinstated

CORNELIA A. CLARK, J., delivered the opinion of the court, in which JEFFREY S. BIVINS,

C.J., and SHARON G. LEE, HOLLY KIRBY, and ROGER A. PAGE, JJ., joined.

Herbert H. Slatery III, Attorney General and Reporter; Andrée S. Blumstein, Solicitor 

General; Jonathan David Shaub, Assistant Solicitor General, for the appellant, State of 

Tennessee.

Jerry H. Summers, Benjamin McGowan, and Marya Schalk, Chattanooga, Tennessee, for 

the appellee, Rosemary L. Decosimo.

Stephen Ross Johnson, Brennan M. Wingerter, and William Gill, Knoxville, Tennessee, 

and Joseph S. Ozment, Memphis, Tennessee, for the amici curiae, National Association 

of Criminal Defense Lawyers and Tennessee Association of Criminal Defense Lawyers. 

OPINION

I. Background 

This appeal involves a challenge to the constitutionality of a statute that imposes a 

$250 “blood alcohol or drug concentration test (BADT) fee” [hereinafter “BADT fee

statute”] on every person convicted of certain statutorily specified offenses,

1

including 

driving under the influence, if the offender “has taken a breath alcohol test on an 

evidential breath testing unit provided, maintained and administered by a law 

enforcement agency for the purpose of determining the breath alcohol content” or the 

offender “has submitted to a chemical test to determine the alcohol or drug content of the 

blood or urine.” Tenn. Code Ann. § 55-10-413(f)(1) (2017).2 Clerks of “the various 

 

1

The other offenses to which the BADT fee statute applies are vehicular assault, aggravated 

vehicular assault, vehicular homicide, simple possession or casual exchange of a controlled substance, 

reckless driving, and aggravated vehicular homicide. Tenn. Code Ann. § 55-10-413(f) (2017).

2

The General Assembly first enacted a statute in 2005 imposing a blood alcohol concentration 

test fee of $100. 2005 Tenn. Pub. Acts, ch. 483, § 7 (codified at § 55-10-419 (2005)). In 2006, the 

General Assembly changed the name of the fee to BADT fee. Tenn. Code Ann. § 55-10-419 (2006); 

2006 Tenn. Pub. Acts, ch. 998, § 2. In 2010, the General Assembly increased the BADT fee from $100 

to $250, based on the TBI’s recommendation. See Tenn. Code. Ann. § 55-10-419 (2010); 2010 Tenn. 

Pub. Acts, ch. 1020, §§ 1, 2. At the time of the defendant’s arrest and indictment, the BADT fee statute 

was codified at Tennessee Code Annotated section 55-10-419 (2012). On July 1, 2013, the relevant 

statutory provisions were transferred to Tennessee Code Annotated section 55-10-413(f). 2013 Tenn. 

Pub. Acts, ch. 154, § 13. This statute was subsequently amended in 2016 and 2017, but these 
- 3 -

courts of the counties” collect BADT fees and forward them monthly to the state 

treasurer for deposit into “the Tennessee bureau of investigation (TBI) toxicology unit 

intoxicant testing fund” [hereinafter “Intoxicant Testing Fund”]. Id. § 55-10-413(f)(2), 

(f)(3)(A). Monies deposited in the Intoxicant Testing Fund “shall be invested pursuant to 

[Tennessee Code Annotated section] 9-4-603” and “shall not revert to the general fund of 

the [S]tate, but shall remain available for appropriation to the [TBI], as determined by the 

[G]eneral [A]ssembly.” Id. § 55-10-413(f)(3)(B). Money in the Intoxicant Testing Fund 

shall be used, “to the extent permitted by federal law and regulation, to fund a forensic 

scientist position in each of the three (3) [TBI] crime laboratories, to employ forensic 

scientists to fill these positions, and to purchase equipment and supplies, pay for the 

education, training and scientific development of employees, or for any other purpose so 

as to allow the [TBI] to operate in a more efficient and expeditious manner.” Id. § 55-10-

413(f)(3)(C). Any additional available funds in the Intoxicant Testing Fund “shall be 

used to employ personnel, purchase equipment and supplies, pay for the education, 

training and scientific development of employees, or for any other purpose so as to allow 

the bureau to operate in a more efficient and expeditious manner.” Id.

The defendant, Rosemary L. Decosimo, challenged the constitutionality of section 

55-10-413(f) after her arrest in the early morning hours of August 18, 2012. She

consensually provided a blood sample upon her arrest, and this blood sample was 

submitted to the forensic services division of the TBI for analysis. Nothing in the record 

reflects that the defendant had an additional blood sample procured for independent 

testing as permitted by statute. See Tenn. Code Ann. § 55-10-408(e) (2017) (“The person 

tested shall be entitled to have an additional sample of blood or urine procured and the 

resulting test performed by any medical laboratory of that person’s own choosing and at 

that person’s own expense; provided, that the medical laboratory is licensed pursuant to 

title 68, chapter 29.”).

The TBI is comprised of three divisions—the criminal investigation division, the 

forensic services division, and the narcotics investigation division. Tenn. Code Ann. § 

38-6-101(a)(2) (2014). The TBI’s forensic services division “consist[s] of experts in the 

scientific detection of crime.” Tenn. Code Ann. § 38-6-103(a) (2014). These experts are 

salaried state employees.3 The forensic services division must “establish, authorize, 

 

amendments did not change any of the statutory provisions relevant to the constitutional issue presented 

in this appeal. See 2016 Tenn. Pub. Acts, ch. 876, § 10; 2017 Tenn. Pub. Acts, ch. 16, §1. However, by 

an amendment effective May 21, 2018, the General Assembly substantially revised the provisions of the 

BADT fee statute at issue in this appeal. See 2018 Tenn. Pub. Acts, ch. 1044, §§ 3, 4. Therefore, 

citations in this opinion reference the version of Tennessee Code Annotated section 55-10-413(f) (2017) 

in effect prior to the 2018 amendment. 

3

The record includes an exhibit listing four categories of TBI forensic scientists and providing 

the following salary ranges for these positions, as of May 1, 2014: (1) $33,108 to $51,372; (2) $45,324 to 

$70,320; (3) $49,500 to $76,788; and (4) $58,752 to $91,140. 
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approve and certify techniques, methods, procedures and instruments for the scientific 

examination and analysis of evidence, including blood, urine, breath or other bodily 

substances, and teach and certify qualifying personnel in the operation of such 

instruments to meet the requirements of the law for the admissibility of evidence.” Id. § 

38-6-103(g). “When examinations, tests and analyses have been performed in 

compliance with these standards and procedures, the results shall be prima facie 

admissible into evidence in any judicial or quasi-judicial proceeding, subject to the rules 

of evidence as administered by the courts.” Id. 

The results of the TBI’s forensic services division’s testing of the blood sample 

the defendant provided showed the defendant’s blood alcohol content at 0.16%. In May 

2013, the Hamilton County Grand Jury charged the defendant with five driving offenses,4

including driving under the influence (“DUI”) with a blood alcohol content above 0.08%, 

which constitutes DUI per se. See Tenn. Code Ann. § 55-10-401(2) (2017).5 

On January 31, 2014, the defendant filed a motion to dismiss, or in the alternative, 

to suppress the TBI’s blood alcohol test results. She challenged the constitutionality of 

the BADT fee statute, arguing that by conditioning imposition of the BADT fee upon

conviction and earmarking the monies to the Intoxicant Testing Fund, rather than to the 

State’s general fund, the BADT fee statute incentivizes TBI forensic scientists to generate

test results that produce convictions and BADT fees. The defendant argued that such a

statutory system gives rise to an appearance of impropriety that violates her fundamental 

right to a fair trial guaranteed by both the Due Process Clause of the Fourteenth 

Amendment to the United States Constitution and article I, section 8 of the Tennessee 

Constitution. 

Twenty-two other persons charged in Hamilton County with an offense for which 

a BADT fee would be assessed upon conviction also filed motions to dismiss their 

indictments and suppress the results of blood alcohol testing. These persons had 

provided either a blood or breath sample to law enforcement. Blood samples were sent to 

the TBI forensic services division for testing. Breath samples were tested by a model 

EC/IR II breath analysis machine calibrated, maintained, and certified by the TBI. These 

persons raised the same constitutional challenge to the BADT fee statute as the 

defendant. 

 

4

The defendant also was charged with failing to yield, violating the driver’s license law by not 

having a driver’s license in her possession, failing to keep her vehicle in a single lane of traffic, and 

driving under the influence.

5

This statutory provision has not changed since the defendant’s arrest; thus, we cite the current 

statute.
- 5 -

On August 1, 2014, three judges of the criminal courts for Hamilton County held a 

single joint hearing on all of these motions. At this joint hearing, counsel for the 

defendants acknowledged that the constitutional claim involved no allegations of actual

unfair or inappropriate action on the part of any TBI forensic scientist and that no 

evidence of that sort would be presented at the hearing. Rather, the defendants explicitly 

premised their constitutional challenge solely on “the appearance” of impropriety and the 

“potential” for abuse resulting from the BADT fee statute creating in the TBI and TBI 

forensic scientists a “financial interest” to obtain convictions of certain offenses and 

collect BADT fees.

As evidence to support this constitutional claim, the defendants introduced a 

transcript of the testimony that former TBI Director Mark Gwyn (“Director Gwyn”) 

provided the General Assembly’s Senate Judiciary Committee on February 11, 2014. 

Director Gwyn provided the following overview of revenue generated from BADT fees 

and TBI expenses for forensic testing of blood alcohol and drug content from 2009 to 

2012: 

 2009 – Revenue: $999,000 and Expenses: $750,000

 2010 – Revenue: $1,011,000 and Expenses: $690,000

 2011 – Revenue: $1,500,000 and Expenses: $1,400,000

 2012 – Revenue: $2,500,000 and Expenses: $1,500,000

He explained that the total surplus of $1,600,000 for this four-year period had been used 

on equipment and training. He stated that, “[i]n 2008, we were faced with some pretty 

deep cuts, cuts that would have at least caused us to do one of two things: [w]e would’ve 

had to shut down some disciplines with[in] our crime laboratory, or we would’ve had to 

start charging local law enforcement for testing.” To avoid those options, the TBI asked 

the General Assembly to increase the BADT fee from $100 to $250. Director Gwyn 

acknowledged that the TBI had “no way to project how many” BADT fees would be 

collected in a given year or “what type of expenses are going to go out.” Director Gwyn

emphasized that “[f]orensic testing is very expensive.” By increasing the BADT fee, 

Director Gwyn said that the TBI had been able to avoid “lay[ing] off forensic scientists” 

and had also avoided passing the cost of forensic testing “back onto local law 

enforcement [which] could not pay it at the end of the day.” 

When one state senator asked Director Gwyn whether earmarking BADT fees to 

the TBI via the Intoxicant Testing Fund might provide an inappropriate incentive for the 

TBI to do extra testing and raise additional money for its expenses, Director Gwyn 

responded, “Absolutely not. There’s no way to do any extra testing.” The same senator 

then asked whether depositing BADT fees into the State’s general fund might be 

preferable, as it would avoid any appearance of impropriety or basis for believing that the 

BADT fee was a “revenue-generator.” To this comment, Director Gwyn responded:
- 6 -

Yes. I mean, I think someone can say almost anything they want to 

say. You know, does a patrol officer out here calibrate his radar gun so it 

shows someone speeding at a higher rate of speed to write a ticket to 

generate revenue from tickets?

I think we just have to let our testing stand on its own. There’s been 

plenty of trial and defense attorneys that have taken our toxicology and our 

blood alcohol exams, outsourced them to private laboratories. 

Unfortunately, we had one incident in the Chattanooga area where a 

young forensic scientist made a mistake. He paid for that mistake. He was 

dismissed. We’ve outsourced all of the cases that [the dismissed forensic 

scientist] had worked. We have 2,000 of them back, and there’s been no 

other mistake.

So, obviously, we don’t want the appearance that we’re doing 

anything wrong. We’re an open book. We’re as transparent as it can be, 

and we welcome anybody to come in and outsource any type of testing that 

they would like to see. 

We just felt like that, on a conviction, part of the court fee could go 

to this so that we would not have to bring it back on local law enforcement 

and hurt them in that way, with some of them not being able to fund [these 

tests]. This type of testing is very expensive.

The [BADT fees were] not meant to make [the] TBI rich. And, as 

you can see, with a million and something left over, that could be used up 

probably in about two instruments within the laboratory. 

So, but, at the will of whatever the [L]egislature thinks, you know, 

obviously, I will abide by that. But, you know, and I guess that’s the best 

answer. I mean, we don’t want any negative hanging over our head, 

obviously. 

Another defense exhibit at the joint hearing contained the TBI’s financial report 

for the Intoxicant Testing Fund. This report reflected (consistently with Director Gwyn’s 

testimony) that revenue from the Intoxicant Testing Fund had been used to support “TBI 

operating expenditures in all its divisions, which include travel, training, supplies and 

equipment” and that “[i]n any given year, when revenue exceeds expenditures, those 

[surplus] funds are reserved, as directed by Tennessee Code Annotated.”
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Director Gwyn provided written stipulations in lieu of a personal appearance and 

testimony at the joint hearing. Director Gwyn stated that increasing the BADT fee from 

$100 to $250 in 2010 had been “necessary to offset state budget cuts that would have 

severely hampered state law enforcement efforts.” He stated that, in fiscal year 2008-

2009, “the actual cost to [the] TBI for each test of bodily fluids for ethyl alcohol was 

approximately $84,” and “[the] cost for each test of bodily fluids for drugs was 

approximately $275.” Director Gwyn estimated that eight special agent positions and 

eight special agent/forensic scientist positions “were in jeopardy” if the BADT fee had 

not been increased. 

Director Gwyn also clarified that the ethyl alcohol retesting performed by an 

independent lab at the flat fee of $35 for each sample among the large batch of samples

initially tested by a TBI forensic scientist who mistakenly switched two blood samples

was “not comparable with the total toxicological services” the TBI provides. For 

example, he explained that this flat $35 rate “did not include any courtroom testimony” 

and that the scope of the testing “was clearly defined and restricted to ethyl alcohol—a 

luxury that [the] TBI is not afforded.” According to Director Gwyn, between thirty-five 

and forty percent of samples submitted to the TBI for toxicological analysis “require a 

full drug screen in addition to ethyl alcohol analysis.” Director Gwyn also characterized 

courtroom testimony provided by TBI forensic scientists as “a significant expense due to 

employees’ time spent preparing to testify, travel time, fuel and vehicle expenses, hotel 

and per diem if necessary, employees’ time spent waiting to testify, and actual testimony 

time.” He stated that, over the prior six months, TBI forensic scientists had “spent an 

average of 80.6 hours per month testifying about test results as expert witnesses.” 

Because testifying is a significant part of a TBI forensic scientist’s job, the TBI spends 

“significant time and money training to maintain the expertise of these employees,” 

including an annual training budget for the toxicology unit of $60,000. New employees 

are required to train for twelve-to-eighteen months before they are allowed to work 

independently, and during training they receive “a salary without producing case work.”

Director Gwyn reiterated that BADT fees “are used for all TBI agency operational 

costs as permitted by Tennessee’s statutes.” He also reiterated that, even though a 

defendant is assessed a single BADT fee upon conviction, “[t]he conviction may be based 

on a breath alcohol analysis, a blood alcohol analysis performed on the subject’s bodily 

fluid sample, a drug screen performed on the subject’s bodily fluid sample, or a 

combination of testing. The type of testing performed is unrelated to the fee.” 

The defense also introduced as exhibits TBI documents titled “Budget 

Presentation” for fiscal years 2010-2011, 2011-2012, 2012-2013, and 2013-2014. These 

documents had been provided to the Senate Judiciary Committee of the Tennessee 

General Assembly, along with an oral presentation by Director Gwyn and other TBI 

personnel. In fiscal year 2010-2011, the TBI had a total budget request of $63,000,000, 
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and the forensic services division had conducted 270,000 laboratory tests on 83,000 

pieces of evidence. In fiscal year 2011-2012, the TBI had a total budget request of 

$64,970,600, and the forensic services division had conducted 315,600 laboratory tests 

on 80,000 pieces of evidence. In fiscal year 2012-2013, the TBI had a total budget 

request of $66,000,000 and the forensic services division had conducted 331,125 

laboratory tests on 82,872 pieces of evidence. In 2013-2014, the TBI had a total budget 

request of $70,000,000. The record does not contain information about the number of 

tests the forensic services division conducted that fiscal year.

The defendants also presented evidence about the TBI forensic scientist who had 

been fired for switching two blood samples.

6

 According to the proof, this forensic 

scientist failed to follow TBI protocol and mistakenly switched two blood samples. This 

mistake resulted in a person with an actual blood alcohol content of 0.01% being charged 

with vehicular homicide based on the other person’s blood alcohol content of 0.24%. 

When the State discovered the error, it moved to dismiss the charge. The TBI fired the 

forensic scientist and sent all samples he had tested to an outside laboratory for retesting. 

In a letter introduced as a defense exhibit, TBI Assistant Director Robert Royse stated:

On October 3, 2013[,] TBI was notified of a discrepancy in blood 

alcohol testing results. Both an independent and an internal reanalysis of 

the data associated with these samples indicate that [a single forensic 

scientist] inadvertently switched two blood tubes at the time of analysis. 

While all indications were that this was an isolated incident, confidence in 

the results issued by our Laboratory is of paramount importance to the TBI.

Therefore, arrangements were made for an independent laboratory to 

reanalyze every positive Blood Alcohol Analysis performed by this 

examiner. Through the State of Tennessee’s competitive bidding process 

AIT Laboratories was awarded the contract for retesting, which totaled 

2,827 samples. The scope of this independent laboratory retesting was to 

determine if any samples had been switched by [the forensic scientist]. 

Review of these 2,827 retested samples indicates that in all other cases the 

correct blood sample was originally analyzed by TBI. 

The defendants emphasized that there were variations between the results of the 

TBI testing and the results of the independent laboratory retesting. In some cases, the 

independent laboratory retesting showed a blood alcohol content of less than the 0.08% 

threshold necessary for DUI per se or less than the 0.20% threshold necessary for 

enhanced punishment. The State responded that in most cases the independent laboratory 

 

6

The defendants were allowed to present this proof even though they were not alleging any 

actual misconduct or mistakes in the handling and testing of their own samples.
- 9 -

retesting reflected blood alcohol content levels higher than the TBI’s initial testing

results. Additionally, TBI Assistant Director Royse explained:

Some variation should be expected between any two scientific 

measurements. When comparing the retested data one must consider that 

ethyl alcohol is a volatile compound and many factors such as sample age, 

volume of sample available for retesting, sample condition, and the number 

of times the blood tube has been opened may influence the results. 

Additionally, it must be noted that the supplied TBI result is the lower of 

two analyses and has been truncated from four decimal points supplied by 

the analytical instrument down to two decimal places for reporting 

purposes; therefore any statistical comparison between truncated and nontruncated data may be problematic.

Also testifying at the joint hearing for the defendants were two defense attorneys 

specializing in DUI defense. Attorney Raymond W. Fraley, who practiced law in 

Lincoln County at the time of the hearing in 2014, had handled over 2000 DUI cases. 

Mr. Fraley described the increased emphasis on the results of forensic testing of blood 

and breath samples in DUI prosecutions and the increased number of offenses and 

penalties that can be established with proof of blood alcohol test results alone. Mr. 

Fraley opined that TBI test results greatly influence judges and prosecutors and often 

determine whether a defendant goes to trial or enters a guilty plea. Mr. Fraley viewed the 

BADT fee statute as impinging on the right to a fair trial. He did not consider crossexamination of TBI forensic scientists about the BADT fee statute a sufficient safeguard, 

partly because eighty-five percent of DUI cases settle prior to trial. Mr. Fraley also 

disagreed that the availability of independent testing of blood and urine samples7

sufficiently protects a defendant’s right to fair trial. He characterized independent testing 

as “moderately inexpensive” and said that, in his experience, most clients who had 

consumed any alcohol before being stopped did not pursue independent testing. Mr. 

Fraley estimated that only fifteen to twenty percent of his clients seek independent 

testing, and he theorized that errors in TBI forensic testing are likely often never 

discovered because of the infrequency of independent testing. Mr. Fraley acknowledged, 

however, that of his clients who had sought independent testing, none of the independent 

test results had ever differed from the TBI’s initial test results. Mr. Fraley also 

acknowledged that the TBI has implemented a policy of duplicate testing of blood 

samples, which he characterized as “good science.”

Attorney Lloyd Levitt, who practiced in Hamilton County and had handled over 

1000 DUI cases at the time of the hearing in 2014, described the TBI’s blood alcohol test 

results as “the driving factor in any DUI case.” Mr. Levitt stated that a 2012 change in 

 

7

See Tenn. Code Ann. § 55-10-408(e).
- 10 -

Tennessee law mandating blood tests when an impaired person kills or injures another 

person resulted in “a huge increase in blood testing.” According to Mr. Levitt, the 

increased number of blood samples submitted for testing after the 2012 change in the law 

had overwhelmed the TBI forensic services division and had resulted in a four to five

month delay in receiving results from blood alcohol testing. Receipt of test results could 

be delayed for more than a year if retesting was required. Mr. Levitt agreed that the 

increased number of blood samples submitted for forensic testing had translated to the

TBI receiving more money from the $250 BADT fee assessed upon each conviction.

At the conclusion of the hearing, defense counsel acknowledged that no evidence 

of actual TBI bias had been presented and that no evidence had been offered to establish 

that TBI forensic scientists manipulate blood alcohol tests to generate more convictions

and more BADT fees. The defendants contended, however, that they had shown an 

appearance of impropriety and that this showing was sufficient to establish the statute’s 

constitutional invalidity. The defendants maintained that the separate statute declaring 

TBI test results prima facie admissible in any judicial or quasi-judicial proceeding

exacerbates the appearance of impropriety created by the BADT fee statute. See Tenn. 

Code Ann. § 38-6-103(g). The defendants argued that, just as paying a trial judge a $250 

bounty for each conviction violates the state and federal constitutional due process 

guarantees, so too does paying the TBI a $250 bounty contingent upon conviction.

By a single order entered December 11, 2014, the three trial judges denied the 

defense motions for suppression and dismissal but granted the defendants the right to a 

jury instruction concerning the financial interest the BADT fee statute creates in the TBI

obtaining convictions. In so holding, the trial judges described the TBI’s financial 

interest in BADT fees as “not negligible” and “very large” in the aggregate. The trial 

judges nevertheless rejected the defendants’ constitutional challenge, explaining:

Presumably, it is impossible to calibrate breath-test machines to 

overstate any positive result. Thus, no financial interest on the calibrator’s 

part can affect the results of breath tests.

As for blood tests, presumably, despite the evidence of 

acknowledged and unacknowledged errors in blood tests, it is impossible to 

calibrate blood-test machines to overstate any positive result. The sole 

acknowledged error in the record was a transposition error; perhaps the 

unacknowledged errors in the record lie within the margin of error. 

Presumably, too, despite the statement in the reports in the record that 

“[t]he above represents the interpretations and opinions of the analyst[,”] 

blood tests are subject to minimal, if any, interpretation or opinion.
- 11 -

Although deliberate falsifications attributable to financial interest 

remain a possibility, presumably, what protects defendants from accidental 

transposition errors also protects them from deliberate falsifications: the 

availability of independent analysis of blood, at state expense in appropriate 

cases, and the availability of underlying “technical notes and data” that, 

according to a statement in the reports in the record, the laboratory 

maintains in its case records. Thus, the financial interest in obtaining DUI 

convictions is offset by financial and other interests in continuing to have 

employment and avoiding criminal liability, making the possibility of a 

deliberate falsification attributable to financial interest remote without 

necessarily changing defendants’ calculations regarding the advisability of 

independent analysis.8

After this order was entered, the trial judge initially assigned to Ms. Decosimo’s

case retired, and two successor trial judges recused themselves. Senior Judge Paul G. 

Summers was then designated to hear the case, and the defendant renewed her motion. 

The defendant relied on the evidence presented at the August 2014 hearing, but she also

introduced evidence from the TBI’s March 3, 2015 budget hearing before the General 

Assembly’s Senate Judiciary Committee, as well as letters and charts from the Tennessee 

Department of Revenue containing data about BADT fee collections from 2005 to 2016. 

BADT fees collected over this eleven-year period totaled $22,059,970.90. In his March 

3, 2015 testimony before the Senate Judiciary Committee, Director Gwyn stated that the 

TBI had a total annual budget of $70,000,000.00. Other TBI officials testified that same 

day that BADT fee collections averaged approximately $3,000,000 per year—less than 

five percent of the TBI’s total budget. In one letter, a representative of the Department of 

Revenue explained that no data showed “which portion of the total amount of the BADT 

fees collected is the result of a DUI or reckless driving conviction” and that no data 

showed the year of conviction because court costs may be paid “in installments over 

time,” meaning “the BADT fee may be spread out over multiple years, or even not paid at 

all if the individual is unable to pay the court costs.” 

Upon considering all the evidence, the Senior Judge denied the defendant’s 

renewed motion for suppression and dismissal. The defendant then entered a nolo 

contendere plea to DUI per se and reserved the following certified question of law for 

appeal:

 

8

The trial court judges granted the defendants’ consolidated motion for an interlocutory appeal, 

but the Court of Criminal Appeals denied the application for an interlocutory appeal, and this Court also 

denied the defendants’ application for permission to appeal. State v. Repass, No. E2015-00336-CCA-R9-

CD (Tenn. Crim. App. July 9, 2015), perm. app. denied (Tenn. Oct. 16, 2015). The trial court judges 

dismissed as untimely the State’s application for an interlocutory appeal, noting that the State could still 

file an extraordinary appeal under Tennessee Rule of Appellate Procedure 10.
- 12 -

Whether the trial court erred in not dismissing this case, or 

alternatively, suppressing the blood alcohol evidence without which the 

State could not proceed against the defendant on this DUI per se 

conviction, where T.C.A. § 55-10-413(f) is unconstitutional in violation of 

due process and rights to a fair trial under the Fifth, Sixth, and Fourteenth 

Amendments of the United States Constitution and under article I, sections 

8 and 9 of the Tennessee Constitution based on the fact that the [TBI]

receives a $250 BADT/BAT fee in every case in which a conviction is 

obtained for driving under the influence or other listed offense, wherein a 

TBI blood test or TBI-calibrated breath test result is used, thereby creating 

a “contingent-fee-dependent system” susceptible to bias because the TBl’s 

testing and interpretation of these tests play the determinative role in the 

prosecution of the charge, and a jury instruction regarding this statutory 

incentive in favor of conviction is insufficient to cure the magnitude of the 

constitutional violation.9

The State dismissed all other charges against the defendant.

The Court of Criminal Appeals resolved the certified question by holding that the 

BADT fee statute violates “due process principles.” State v. Decosimo, No. E2017-

00696-CCA-R3-CD, 2018 WL 733218, at *8 (Tenn. Crim. App. Feb. 6, 2018), perm. 

app. granted (Tenn. Mar. 21, 2018). The intermediate appellate court began by reviewing 

three decisions of the United States Supreme Court: Tumey v. Ohio, 273 U.S. 510 

(1927); Ward v. Vill. of Monroeville, 409 U.S. 57 (1972); and Connally v. Georgia, 429 

U.S. 245 (1977). It described these decisions as holding that judges may not, consistent 

with due process, “have a direct or indirect pecuniary interest in the litigation before 

them.” Decosimo, 2018 WL 733218, at *10-13. The Court of Criminal Appeals 

determined, however, that this due process principle applies only to persons performing 

adjudicatory functions and does not apply to TBI forensic scientists, who typically serve 

as expert witnesses and perform no “judicial or quasi-judicial functions.” Decosimo, 

2018 WL 733218, at *14. 

Nevertheless, the Court of Criminal Appeals chose not to end its analysis there, 

commenting that it “[could] not ignore the fact that, pursuant to . . . section 55-10-

413(f)(2), the TBI receives a fee for each conviction where a blood or breath test is 

 

9

Although the certified question is framed as challenging the entire BADT fee statute, including 

the portion that provides for imposition of a BADT fee in cases involving a “TBI blood test or TBIcalibrated breath test result,” the defendant submitted only a blood sample, and the proof offered at the 

joint hearing focused on blood samples not breath samples. Nevertheless, our analysis and rejection of 

the defendant’s facial constitutional challenge to the statute is not dependent on the type of sample 

involved and applies with perhaps even greater force to breath tests, where the only role TBI forensic 

scientists have is calibrating, maintaining, and certifying the breath analysis machines.
- 13 -

performed but does not receive a fee if a defendant’s charges are dismissed or reduced or 

if a defendant is acquitted.” Decosimo, 2018 WL 733218, at *16. The Court of 

Criminal Appeals determined that the BADT fee statute creates in the TBI “a direct 

pecuniary interest in securing convictions.” Id. It described the BADT fee statute as “a 

mechanism whereby the TBI forensic scientists have a pecuniary interest in BADT fees 

in the form of continued employment, salaries, equipment, and training within the TBI.” 

Id. The intermediate appellate court analogized “the close relationship between the 

BADT fees and the operational expenses of the TBI . . . to an expert witness contingency 

fee” and pointed out that this Court had already held such arrangements void because 

they encourage bias. Id. (citing Swafford v. Harris, 967 S.W.2d 319, 323 (Tenn. 1998); 

Tenn. Sup. Ct. R. 8, RPC 3.4(h); Crowe v. Bolduc, 334 F.3d 124, 132 (1st Cir. 2003)). 

Although the Court of Criminal Appeals acknowledged that TBI forensic scientists may 

“lose their jobs if they falsify test results and these falsifications are discovered,” it 

dismissed this fact as insignificant because “forensic scientists would most certainly lose 

their jobs if funding for their positions disappears, a result of which these forensic 

scientists are no doubt well aware.” Decosimo, 2018 WL 733218, at *17. The

intermediate appellate court held the BADT fee statute unconstitutional, declaring that it

“calls into question the trustworthiness of the TBI forensic scientists’ test results” and 

“violates due process.” Id. To remedy this constitutional violation, the Court of Criminal 

Appeals reversed the trial court, granted the defendant’s motion to suppress the results of 

the TBI blood alcohol testing, and dismissed the DUI per se charge to which the 

defendant had entered a nolo contendere plea. Id. at *17-18. 

The State then filed an application for permission to appeal, which this Court 

granted. Thereafter, this Court directed the parties to file supplemental briefs addressing 

whether the constitutional challenge to the BADT fee statute had been rendered moot by 

2018 legislation amending that statute. See State v. Decosimo, No. E2017-00696-SCR11-CD (Tenn. May 11, 2018) (order directing supplemental briefing). The 2018 

legislation, which became effective May 21, 2018, abolishes the Intoxicant Testing Fund 

and provides for depositing BADT fees in the State’s general fund for appropriation as 

the General Assembly determines. See 2018 Tenn. Pub. Acts, ch. 1044, §§ 3, 4. 

Both parties argued in their supplemental briefs that this appeal had not been 

rendered moot because the 2018 legislation does not apply to the defendant’s appeal, 

which is governed by the BADT fee statute existing before the 2018 legislation became 

effective. We agree and will analyze the BADT fee statute as it existed prior to the 2018 

legislation.

10

 

 

10 We note, however, that the defendant has stated throughout this litigation, including in her 

supplemental brief and again at oral argument before this Court, that amending the statute to deposit 

BADT fees in the State’s general fund rather than earmarking BADT fees to the TBI would eliminate the 

basis of her constitutional challenge. The 2018 legislation revised the BADT statute in precisely this 

manner.
- 14 -

II. Standard of Review

The issue in this appeal—whether a statute is constitutional—is a question of law 

to which de novo review applies. Hughes v. Tenn. Bd. of Prob. and Parole, 514 S.W.3d 

707, 712 (Tenn. 2017). We afford no deference to the legal conclusions of the courts 

below. Creech v. Addington, 281 S.W.3d 363, 372 (Tenn. 2009). We “start with a 

strong presumption that acts passed by the legislature are constitutional.” Lynch v. City 

of Jellico, 205 S.W.3d 384, 390 (Tenn. 2006). We “‘indulge every presumption and 

resolve every doubt in favor of the statuteʼs constitutionality.’” Gallaher v. Elam, 104 

S.W.3d 455, 459 (Tenn. 2003) (quoting State v. Taylor, 70 S.W.3d 717, 721 (Tenn. 

2002)). This presumption applies with even greater force when, as here, the facial 

constitutional validity of a statute is challenged. Id.

III. Analysis

The federal and state constitutions explicitly guarantee the right to due process of 

law. The Fourteenth Amendment to the United States Constitution prohibits the 

deprivation of “life, liberty, or property without due process of law.” U.S. Const. amend.

XIV. Article I, section 8 of the Tennessee Constitution provides that “no man shall be 

taken or imprisoned, or disseized of his freehold, liberties, or privileges . . . or in any 

manner destroyed or deprived of his life, liberty or property, but by the judgment of his 

peers or the law of the land.” Tenn. Const. art. I, § 8. These constitutional provisions 

have been described as “synonymous” in the scope of protection they afford. Gallaher, 

104 S.W.3d at 463. The same analysis therefore applies to the defendant’s state and 

federal constitutions claims.

“[O]ne of the most basic due process requirements is a fair trial in a fair tribunal.” 

State v. White, 362 S.W.3d 559, 566 (Tenn. 2012). This right “entitles a person to an 

impartial and disinterested tribunal in both civil and criminal cases.” Marshall v. Jerrico, 

Inc., 446 U.S. 238, 242 (1980). In criminal cases, the denial of the right to an impartial 

tribunal is a structural constitutional error that requires automatic reversal. Smith v.

State, 357 S.W.3d 322, 342-43 (Tenn. 2011); State v. Rodriguez, 254 S.W.3d 361, 371 

(Tenn. 2008). Such errors defy harmless error analysis, and a defendant is not required to

establish prejudice. Smith, 357 S.W.3d at 342-43. The defendant alleges that the BADT 

fee statute denies her of the state and federal constitutional right to a fair and impartial 

tribunal by giving TBI forensic scientists both a personal and an institutional financial

incentive to produce blood alcohol test results that will generate convictions and BADT 

fees.

Several United States Supreme Court decisions govern our analysis of this claim, 

beginning with a trilogy of decisions that arose from criminal trials in Ohio mayor courts 
- 15 -

where the mayors also served as the judges. See Tumey v. Ohio, 273 U.S. 510 (1927); 

Dugan v. Ohio, 277 U.S. 61 (1928); Ward v. Vill. of Monroeville, 409 U.S. 57 (1972).

In Tumey, the Supreme Court held that a statutory scheme providing a mayorjudge direct compensation for each conviction in his court violated due process. The 

statutory scheme established a “liquor court,” in which the mayor-judge adjudicated 

prohibition violations and imposed fines. 273 U.S. at 521. The mayor-judge received a

portion of each fine he imposed as compensation in addition to his salary. Id. at 520. He 

received this additional compensation only for convictions. Id. A substantial portion of 

the fines also were allocated for improvements and repairs to the village where the 

mayor-judge owned a house, id. at 521, and served as chief executive officer of the 

village, with the responsibility for managing village finances, id. at 533.

The Supreme Court held that this statutory scheme deprived Tumey of the right to 

a fair and impartial tribunal. The Supreme Court explained that the mayor-judge had “a 

direct, personal, substantial pecuniary interest . . . in convicting the defendant who came 

before him for trial,” 273 U.S. at 523, and also had an “official motive to convict and to 

graduate the fine to help the financial needs of the village,” id. at 535. Not only did the 

Supreme Court strike down the statutes at issue in Tumey, but it also announced the 

following test for evaluating such due process claims in future cases:

[e]very procedure which would offer a possible temptation to the average 

man as a judge to forget the burden of proof required to convict the 

defendant, or which might lead him not to hold the balance nice, clear, and 

true between the state and the accused denies the latter due process of law.

Tumey, 273 U.S. at 532 (emphasis added). The Supreme Court observed that “[a] 

situation in which an official . . . occupies two practically and seriously inconsistent 

positions, one partisan and the other judicial, necessarily involves a lack of due process 

of law in the trial of defendants charged with crimes before him.” Id. at 534 (emphasis 

added).

The Supreme Court revisited the issue one year later in Dugan. There, the city 

where the mayor-judge served operated under “a commission form of government, with 

five commissioners.” 277 U.S. at 63. The mayor-judge served as a member of the 

commission, but unlike the mayor-judge in Tumey, in Dugan the mayor-judge had no 

executive authority. Id. A city manager served as the city’s “active executive,” and the 

commission, of which the mayor-judge was only a member, exercised “all the legislative 

power of the city.” Id. The mayor-judge had primary individual responsibility for 

judicial functions, and he received a fixed salary set by the four other members of the 

city’s commission. Id. The Dugan mayor-judge’s salary was not dependent at all on his 

judicial responsibilities, unlike the mayor-judge in Tumey. Id. at 65. The Supreme Court 
- 16 -

acknowledged that the mayor-judge’s salary was paid from a general fund into which 

fines imposed in his court were deposited, but the Supreme Court emphasized that the 

Dugan mayor-judge’s failure to convict did not “deprive him of or affect his fixed 

compensation” and that he did not have executive responsibility for the finances of the 

city. Id. The Supreme Court concluded that the Dugan mayor-judge’s alleged financial 

interests were too “remote” to constitute a violation of the defendant’s due process right 

to a fair trial in a fair tribunal. Id.; see also Ward, 409 U.S. at 60-61 (stating that the 

Dugan mayor-judge’s “relationship to the finances and financial policy of the city was 

too remote to warrant a presumption of bias toward conviction in prosecutions before him 

as judge”). See also Long v. Bd. of Prof’l Responsibility, 435 S.W.3d 174, 188-89 

(Tenn. 2014) (rejecting a due process challenge to lawyer-disciplinary proceedings 

because the members of the hearing panel that imposed the discipline “receive[d] no 

compensation” and “ha[d] no responsibility for the budget or the finances” of the Board 

of Professional Responsibility). 

Almost fifty years after Dugan, the Supreme Court decided Ward. 409 U.S. at 57. 

The mayor-judge in Ward had broad executive powers, exercised overall supervision of 

village affairs, and accounted annually to the village council about village finances. Id. at 

58. A substantial part of village income derived from fines, forfeitures, costs, and fees 

the mayor-judge imposed in his court. Id. But, unlike the mayor-judge in Tumey, the 

mayor-judge in Ward did not personally receive any portion of the fees as compensation.

Id. at 60. Nevertheless, focusing on the second part of the test announced in Tumey, the 

Supreme Court in Ward held that the mayor-judge’s interest in city finances was 

sufficient to deprive the defendant of his right to an impartial tribunal. The Supreme 

Court explained:

“[P]ossible temptationˮ may also exist when the mayor’s executive 

responsibilities for village finances may make him partisan to maintain the 

high level of contribution from the mayor’s court. This, too, is a “situation 

in which an official . . . occupies two practically and seriously inconsistent 

positions, one partisan and the other judicial, (and) necessarily involves a 

lack of due process of law in the trial of defendants charged with crimes 

before him.ˮ

Id. at 60 (quoting Tumey, 273 U.S. at 534). See also Gibson v. Berryhill, 411 U.S. 564, 

579 (1973) (holding that an administrative board composed of optometrists had a 

pecuniary interest of “sufficient substance” so that it did not constitute a fair and 

impartial tribunal to preside over a hearing against competing optometrists).

Five years later, the Supreme Court applied the Tumey principle in Connally v.

Georgia, 429 U.S. 245 (1977) (per curiam). The Georgia statute at issue in Connally

compensated justices of the peace when search warrants were issued but provided no 
- 17 -

compensation when search warrant applications were denied. Id. at 246. The justices of 

the peace were not salaried, so their “financial welfare” depended on issuing search 

warrants. Id. at 250. The Supreme Court struck down the statute, comparing it to Tumey

and Ward and describing it as “another situation where the defendant is subjected to what 

surely is judicial action by an officer of a court who has ‘a direct, personal, substantial, 

pecuniary interest’ in his conclusion to issue or to deny the warrant.” Id. (quoting 

Tumey, 273 U.S. at 523) (emphasis added). See also In re Dender, 571 S.W.2d 491, 

492 (Tenn. 1978) (holding that the issuance of an arrest warrant “by a non-salaried justice 

of the peace” who received compensation for issuing the warrant violates due process).

In the foregoing cases in which the Supreme Court found a due process violation, 

the persons responsible for adjudicating a case or determining whether a legal standard 

had been satisfied for issuance of a warrant had a direct, personal, substantial pecuniary 

interest in reaching an outcome adverse to the person raising the constitutional challenge. 

In other words, the direct, personal, and substantial pecuniary interest was held by 

persons exercising judicial authority. Indeed, only three years after Connally, the 

Supreme Court explained that the strict due process impartiality standards of Tumey and 

its progeny apply only to persons exercising judicial or quasi-judicial authority. 

Marshall, 446 U.S. at 248.

At issue in Marshall was a due process challenge to a portion of the Fair Labor 

Standards Act pertaining to the enforcement of federal child labor law provisions. Id. at 

240. The Secretary of the Department of Labor had designated the Employment 

Standards Administration (“ESA”) as the agency responsible for enforcing these child 

labor law provisions. Id. The ESA elected to fulfill its responsibilities through its 

regional offices, and “the assistant regional administrator of each office ha[d] been 

charged with the duty of determining violations and assessing penalties.” Id. Another 

provision of the law provided that any civil penalties assessed for child labor law 

violations would be returned to the ESA as reimbursement for the costs. Id. at 239. In 

Marshall, the provision returning civil penalties to the ESA was challenged as creating

“an impermissible risk and appearance of bias by encouraging the assistant regional 

administrator to make unduly numerous and large assessments of civil penalties.” Id. at

241.

In analyzing this claim, the Supreme Court first emphasized that it had “jealously 

guarded” the due process requirement of an impartial and disinterested judge. 446 U.S. 

at 242. But it rejected the constitutional challenge, explaining “that the strict 

requirements of Tumey and Ward are not applicable to the determinations of the assistant 

regional administrator, whose functions resemble those of a prosecutor more closely than 

those of a judge.” Id. at 243. The Supreme Court clarified that the Tumey requirements 

are “designed for officials performing judicial or quasi-judicial functions” and “are not 

applicable to those acting in a prosecutorial or plaintiff-like capacity.” Id. at 248. The 
- 18 -

Supreme Court observed that Tumey had “explicitly” recognized this “distinction 

between judicial and nonjudicial officers” when it declared that state legislatures “‘may, 

and often ought to, stimulate prosecutions for crime by offering to those who shall initiate 

and carry on such prosecutions rewards for thus acting in the interest of the State and the 

people.’” Id. at 249 (quoting Tumey, 273 U.S. at 535). 

The Supreme Court refused to equate the assistant regional administrator in 

Marshall with the decision makers in Tumey and its progeny, explaining:

He is not a judge. He performs no judicial or quasi-judicial 

functions. He hears no witnesses and rules on no disputed factual or legal 

questions. The function of assessing a violation is akin to that of a 

prosecutor or civil plaintiff. If the employer excepts to a penalty—as he 

has a statutory right to do—he is entitled to a de novo hearing before an 

administrative law judge. In that hearing the assistant regional 

administrator acts as the complaining party and bears the burden of proof 

on contested issues. Indeed, the Secretary’s regulations state that the notice 

of penalty assessment and the employer’s exception “shall, respectively be 

given the effect of a complaint and answer thereto for purposes of the 

administrative proceeding.” It is the administrative law judge, not the 

assistant regional administrator, who performs the function of adjudicating 

child labor violations.

446 U.S. at 247-48 (footnote and citations omitted).

Although the Supreme Court refused to apply the Tumey requirements, it also 

declined to hold “that the Due Process Clause imposes no limits on the partisanship of 

administrative prosecutors.” Id. at 249. The Supreme Court referred to earlier decisions 

holding that courts may scrutinize “enforcement decisions of an administrator” if the 

decisions “were motivated by improper factors or were otherwise contrary to law.” Id.

(citing Dunlop v. Bachowski, 421 U.S. 560, 567, n. 7 (1975); Rochester Tel. Corp. v. 

United States, 307 U.S. 125 (1939)). The Supreme Court posited that “[a] scheme 

injecting a personal interest, financial or otherwise, into the enforcement process may 

bring irrelevant or impermissible factors into the prosecutorial decision and in some 

contexts raise serious constitutional questions.” Marshall, 446 U.S. at 249-50 (citing

Bordenkircher v. Hayes, 434 U.S. 357, 365 (1978)). Nevertheless, the Supreme Court 

declared that “the strict requirements of neutrality cannot be the same for administrative 

prosecutors as for judges, whose duty it is to make the final decision and whose 

impartiality serves as the ultimate guarantee of a fair and meaningful proceeding in our 

constitutional regime.” Marshall, 446 U.S. at 250.
- 19 -

The Supreme Court found it unnecessary in Marshall to determine “with precision 

what limits there may be on a financial or personal interest of one who performs a 

prosecutorial function” because “the influence alleged to impose bias [was] exceptionally 

remote.” 446 U.S. at 250. The Supreme Court pointed out that no government official 

stood “to profit economically from vigorous enforcement of the child labor provisions,” 

and that “[t]he salary of the assistant regional administrator [was] fixed by law” and not 

dependent on the imposition of civil penalties. Id. The type of personal, direct, 

substantial pecuniary interests at stake in Tumey and Connally were, thus, “entirely 

absent” in Marshall. Id.

The Supreme Court also found no “realistic possibility that the assistant regional 

administrator’s judgment w[ould] be distorted by the prospect of institutional gain as a 

result of zealous enforcement efforts,” pointing out that civil penalties represented

“substantially less” than one percent of the ESA budget. Id. The Supreme Court also

noted that the ESA national office, not any assistant regional administrator, controlled the 

allocation of civil penalties, so no assistant regional administrator had any assurance that 

the civil penalties they assessed would be returned to their offices at all. Id. at 251. 

Ultimately, the Supreme Court declared that, “[u]nlike in Ward and Tumey, it is plain 

that the enforcing agent is in no sense financially dependent on the maintenance of a high 

level of penalties.” Id. at 251. 

Having examined these Supreme Court decisions, we first conclude that, like the 

assistant regional administrator in Marshall, the TBI forensic scientists in this case

“simply cannot be equated with the kind of decisionmakers” to which the strict due 

process requirements of Tumey and its progeny apply. TBI forensic scientists are not 

judges. They do not perform judicial or quasi-judicial functions. They do not hear 

witnesses or rule on disputed factual or legal questions or determine guilt or innocence. 

Judges and jurors perform these tasks. Indeed, their responsibilities are much more 

different from persons exercising judicial authority than were the responsibilities of the 

assistant regional administrator in Marshall. For example, TBI forensic scientists have 

absolutely no control over procuring evidence, making arrests, or initiating prosecutions. 

They simply perform scientific tests on evidence samples submitted to them by law 

enforcement. Law enforcement officers make arrests. Unlike judicial officials and 

prosecutors, TBI forensic scientists exercise “minimal, if any interpretation or opinion” 

when conducting blood alcohol testing. They are required to conduct scientific tests in 

accordance with uniform procedures and standards the TBI forensic services division is 

required by statute to adopt. See Tenn. Code Ann. § 38-6-103(g). It is true that the 

results of tests TBI forensic scientists perform are prima facie admissible in judicial and 

quasi-judicial proceedings, but only insofar as the tests have been performed in 

compliance with the applicable uniform standards and procedures and also “subject to the 

rules of evidence as administered by the courts.” Id. (emphasis added). For all these 

reasons, we conclude that TBI forensic scientists are not judicial officials to whom the 
- 20 -

Tumey requirements apply and are at least one step farther removed from having 

adjudicatory responsibilities than are prosecutors and the assistant regional administrator 

in Marshall. This distinction alone is a sufficient basis for rejecting the defendant’s 

constitutional challenge to the BADT fee statute. See Concrete Pipe & Prods. of Cal., 

Inc. v. Constr. Laborers Pension Trust, 508 U.S. 602, 619 (1993) (applying Marshall in a 

subsequent case and stating that the “distinction between adjudication and enforcement 

disposes of the [defendant’s] claim that the assumed bias or appearance of bias . . . alone 

violates the Due Process Clause”); Long, 435 S.W.3d at 187–88 (rejecting an attorney’s 

argument that Tennessee Supreme Court Rule 9 “creates a financial incentive” for the 

Board of Professional Responsibility “to initiate formal disciplinary proceedings” and 

“results in an ‘institutional bias’ in favor of finding the respondent guilty of misconduct 

and imposing a disciplinary sanction” and distinguishing Tumey, Ward, and Connally);

Brown v. Edwards, 721 F.2d 1442, 1451 (5th Cir. 1984) (rejecting a constitutional 

challenge to a Mississippi statute by which constables received a fee for each charge that 

resulted in a conviction and describing Tumey, Ward, and Connally as “fundamentally 

distinct” because they all “involved a form of judicial action”); Henley v. State, 41 S.W. 

352, 360 (Tenn. 1897) (upholding a statute providing for paying fees to officers and 

witnesses only upon conviction on the grounds that “[t]here is no [constitutional] 

provision for impartial sheriffs or impartial clerks or impartial witnesses” and stating that 

“under this act the court and jury are left impartial as before; nothing that affects them is 

left to depend upon the result of the trial”).

By not extending the Tumey “strict requirements of neutrality” to TBI forensic 

scientists, we are not holding that due process imposes no limits at all. Marshall, 446 

U.S. at 249. Like the Supreme Court in Marshall, we simply need not determine “with 

precision” in this appeal what, if any, due process “limits there may be on a financial or 

personal interest of one who performs” forensic scientific testing because the financial 

“influence alleged to impose bias” here is “exceptionally remote.” Id. at 250. Indeed, the 

alleged financial interest is so remote that the defendant’s constitutional challenge cannot 

prevail even under the strict Tumey requirements.

The defendant has not and cannot establish that the BADT fee statute provides 

TBI forensic scientists with a “direct, personal, substantial pecuniary interest in reaching 

a conclusion against [the defendant]” in a particular case. Ward, 409 U.S. at 60 (quoting 

Tumey, 273 U.S. at 523). TBI forensic scientists are salaried employees. Their 

compensation is not at all dependent on the results of blood alcohol tests or whether a 

particular defendant is or is not convicted. Nor do their salaries decrease or increase 

based on the aggregate amount of BADT fees imposed or collected. These facts alone 

illustrate that TBI forensic scientists do not have a personal, direct, substantial pecuniary 

interest in producing a particular test result. See In re Dender, 571 S.W.2d at 492 (stating 

that the Tumey principle “has no application to salaried public officials or employees 

whose personal compensation is not enhanced by the issuance of warrants or prejudiced 
- 21 -

by failure to issue” and noting that the Tumey requirements address “[t]he evil” that 

“arises solely in the context of the non-salaried personnel having a direct, personal 

pecuniary interest”).

The defendant also has failed to show “a realistic possibility that the [TBI forensic 

scientist’s] judgment will be distorted by the prospect of institutional gain . . . .” 

Marshall, 446 U.S. at 250. The Court of Criminal Appeals based its ruling on the 

premise that TBI forensic scientists have an institutional financial incentive to increase 

BADT fees to generate funding for the TBI and secure their positions. Decosimo, 2018 

WL 733218, at *16. The record does contain proof that increasing the BADT fee from 

$100 to $250 allowed the TBI to avoid laying off eight forensic scientists, but, like the 

mayor in Dugan and unlike the mayor in Ward, the TBI forensic scientists had no 

management authority or “executive power[]” to determine how increased BADT fees 

would be allocated. Indeed, despite the defendant’s emphasis of the fact that BADT fees 

are deposited into the Intoxicant Toxicant Testing Fund and do not revert to the State’s 

general fund, we note that the BADT fee statute requires the monies to “be invested 

pursuant to [Tennessee Code Annotated section] 9-4-603” and “remain available for 

appropriation to the Tennessee bureau of investigation, as determined by the [G]eneral 

[A]ssembly.” Tenn. Code Ann. § 55-10-413(f)(3)(B) (emphasis added). This statutory 

provision indicates that the General Assembly, rather than the TBI director, retained 

ultimate control over appropriating these funds to the TBI and determining the uses to 

which the TBI could put these funds. Indeed, the BADT fee statute describes many 

purposes for which the Intoxicant Testing Fund may be used, in addition to hiring and 

retaining TBI forensic scientists. The proof also indicates that BADT fees were indeed 

used to fund operations in all divisions of the TBI, not just the forensic services division. 

More importantly, unlike the mayor-judges in Tumey and Ward and the justice of 

the peace in Connally, TBI forensic scientists have no control whatsoever over the 

imposition or collection of BADT fees. As already noted, TBI forensic scientists do not 

make arrests. Although they perform scientific tests on evidence, they do so pursuant to 

statutorily mandated uniform standards and procedures and utilize scientific equipment

that produces results that do not depend upon the subjective judgments of the TBI 

forensic scientists. Although they report the results of scientific testing to law 

enforcement, TBI forensic scientists do not decide whether criminal charges are brought. 

If criminal charges are brought, TBI forensic scientists do not determine whether an 

offense to which the BADT fee statute applies will or will not be charged. If a BADT fee 

statute offense is charged, TBI forensic scientists do not decide whether a defendant will 

be allowed to plead guilty to a lesser or different criminal offense. All of these tasks are 

performed by prosecutors.

Even if a defendant is charged with an offense to which the BADT fee statute 

applies, TBI forensic scientists have no control over when the case will be resolved. 
- 22 -

Indeed, many months, or even years, may pass between a TBI forensic scientist reporting

the results of blood alcohol testing and a trial or plea that resolves the case with

conviction of an offense that triggers imposition of a BADT fee. Even if a TBI forensic 

scientist could predict when a case would be resolved by a conviction, the TBI forensic 

scientist cannot predict when, or even if, a BADT fee will be collected. The record 

clearly establishes that not even the TBI can predict how many BADT fees actually will 

be collected in any given year, regardless of how many have been imposed. The record 

also establishes that some BADT fees are paid by installments or never paid at all, when 

defendants are indigent. Given the lack of control TBI forensic scientists have over the 

lengthy and uncertain processes that must occur after blood alcohol test results are 

reported before any BADT fees are imposed or collected, any institutional financial 

incentive the BADT fee statute creates is far too remote to qualify as a possible 

temptation to a reasonable TBI forensic scientist to manipulate blood alcohol test results. 

Indeed, such a remote institutional financial incentive is far outweighed by the personal, 

direct, and substantial pecuniary financial interest that salaried TBI forensic scientists 

have in continued employment. See also Aetna Life Ins. Co. v. Lavoie, 475 U.S. 813, 

825-26 (1986) (holding that the due process right to an impartial tribunal was violated 

when a state supreme court justice cast the deciding vote to uphold a punitive damages 

award against an insurance company for bad-faith refusal to pay a claim when, at the time 

of his vote, the justice was the lead plaintiff in a nearly identical potential class action 

lawsuit pending in a state trial court, but also holding that the pecuniary interests six 

other justices had as potential members of the same class action were “too remote and 

insubstantial to violate the constitutional constraints” (emphasis added) (internal 

quotation marks omitted.))

As the State points out, a TBI forensic scientist’s continued employment depends 

much more heavily on the forensic scientist’s accurate, objective job performance than on 

any institutional financial incentive to produce test results that increase convictions and 

generate BADT fees that may or may not be allocated to the forensic services division. 

Indeed, the record on appeal illustrates that mistakes, even a single mistake, may well 

lead to a TBI forensic scientist’s dismissal and may result in substantial administrative 

costs to the TBI for retesting samples initially tested by the dismissed forensic scientist. 

The TBI as an institution and individual TBI forensic scientists have much more to lose 

than to gain by altering or fabricating evidence in an attempt to increase convictions and 

generate BADT fees.

With the availability of independent testing, the uniform scientific standards

applicable to the TBI’s forensic testing, the TBI’s internal review mechanisms, and the 

TBI’s response to a forensic scientist who made a mistake, it strains logic to suggest that 

a reasonable forensic scientist would engage in criminal, unethical, and career-ending 

conduct to alter or fabricate forensic scientific test results on the hope that: (1) the test 

results might lead to criminal charges of a BADT fee offense; (2) the criminal charges 
- 23 -

might result in conviction of a BADT fee offense; (3) the BADT fee might be collected 

expeditiously; (4) the TBI director might use BADT fees to retain the TBI forensic 

scientist instead of using the monies for some other statutorily permissible purpose; and 

(5) the General Assembly will not appropriate the BADT fees to another purpose within 

the TBI. Indeed, only an irrational and unreasonable TBI forensic scientist would risk 

losing a salaried position and continued employment in this manner when BADT fees 

amount to less than five percent of the TBI’s overall budget.

11

 In summary then, even 

applying the rigid Tumey requirements, any institutional financial incentive the BADT 

fee statute creates is far too remote to constitute a possible temptation to any reasonable 

forensic scientist to manipulate or falsify test results to increase conviction rates and 

generate BADT fees.

The defendant urges us to hold that the Tennessee Constitution provides greater 

protection than the United States Constitution and entitles her to relief on her due process 

claim.12 This Court is the final arbiter of the Tennessee Constitution and may interpret 

state constitutional provisions more broadly than corresponding provisions of the United 

States Constitution. State v. Watkins, 362 S.W.3d 530, 554 (Tenn. 2012). This Court 

typically departs from federal interpretations of similar constitutional provisions where 

appropriate interpretive grounds, such as textual differences or historical context, support 

such different interpretations. Id. at 555. As already noted, however, this Court has stated 

that the Fourteenth Amendment to the United States Constitution and article I, section 8 

are “synonymous” in the scope of protection they afford. Gallaher, 104 S.W.3d at 463. 

The defendant has not pointed to any textual, historical, or other basis that supports 

interpreting them differently in this context. Additionally, the defendant has failed to 

point to a single decision in Tennessee or elsewhere granting relief under either a state or 

federal constitutional due process provision on a similar due process challenge.

13

 The 

 

11 We also note the long line of Tennessee authority recognizing “that public officials in

Tennessee are presumed to discharge their duties in good faith and in accordance with the law.” West v.

Schofield, 460 S.W.3d 113, 131 (Tenn. 2015); see also Reeder v. Holt, 418 S.W.2d 249, 252 (Tenn. 

1967); Mayes v. Bailey, 352 S.W.2d 220, 223 (Tenn. 1961).

12 We will address the defendant’s argument on this point out of an abundance of caution 

although it is not clear from the record that this issue was raised in the courts below or encompassed 

within the single certified question of law from which this appeal arises.

13 In a supplemental letter brief filed after oral argument, the defendant cited a Massachusetts 

case in which a chemist actually altered test results, Commonwealth v. Scott, 5 N.E.3d 530 (Mass. 2014), 

and a Texas decision—designated not for publication and not for citation as authority—in which a 

forensic scientist’s failure to follow accepted standards rendered the test results unreliable, Ex parte 

Jackson, No. AP-77,008, 2013 WL 1232325 (Tex. Crim. App. Mar. 27, 2013). These decisions involved 

actual misconduct, while the defendant’s due process claim is based on an allegation that, even in the 

absence of misconduct or mistake, the BADT fee statute gives rise to an appearance of impropriety by 

giving TBI forensic scientists a financial incentive to alter or falsify blood alcohol test results to generate
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two cases we have discovered through independent research rejected similar federal due 

process challenges to statutes earmarking fines for certain purposes.

For example, the United States Court of Appeals for the Ninth Circuit considered 

“whether a statute of the Commonwealth of the Northern Mariana Islands (CNMI) that 

earmark[ed] civil and criminal fines imposed by the courts for a judicial building fund” 

deprived the defendant of due process of law in violation of the Fourteenth Amendment 

when he was fined by a judge of the CNMI superior court. Northern Mariana Islands v.

Kaipat, 94 F.3d 574, 574 (9th Cir. 1996). The Ninth Circuit concluded that the defendant 

had failed to establish a due process violation under Tumey and its progeny. Id. at 575. 

In concluding that the superior court judge had no “direct, personal, substantial, 

pecuniary interest in reaching a conclusion against” the defendant, id. at 580 (quoting 

Tumey, 273 U.S. at 523), the Ninth Circuit pointed out that the judge received a fixed 

salary and had a fixed tenure unaffected by the rate at which defendants were convicted 

and fined. Id. It also noted that the judge exercised judicial functions only, had no 

executive responsibility for raising revenue, and had no control over how the monies in 

the judicial building fund were spent. Id. at 581. The Ninth Circuit emphasized too that, 

while the fines had been earmarked to the judicial building fund, “the legislature could 

just as easily have decided, or . . . could decide at any time, to earmark these same fees 

and fines” for other purposes. Id. The Ninth Circuit acknowledged that “judges are only 

human and (along with the public, litigants and attorneys) will no doubt welcome 

courthouse facilities that are more comfortable, efficient and secure-if and when they are 

built and if the judges are still in office to serve in them.” Id. But, it ultimately 

concluded that “this kind of interest is too contingent and speculative and insubstantial to 

constitute the direct stake in the outcome of a case that is constitutionally infirm.” Id. 

The Ninth Circuit concluded that it was “not reasonable to assume that a CNMI judge 

might be tempted to impose a fine, or to impose a higher fine, to enhance the prospects of 

building a building or building a building sooner rather than later.” Id. 

An Arizona appellate court reversed a trial court’s ruling that a statute providing 

for “payment of fines for drug-related offenses to the drug enforcement fund” violated 

the defendant’s “[federal] due process right to a fair and impartial adjudication of guilt 

when the sentencing judge’s court is funded in part with monies from the drug 

enforcement fund.” State v. Conlin, 832 P.2d 225, 225 (Ariz. Ct. App. 1992). While the 

Arizona court applied the Tumey requirements, it rejected the defendant’s due process 

challenge, stating “that a superior court judge whose court is funded with monies from 

the drug enforcement fund does not have a ‘direct, personal, substantial, pecuniary 

interest’ in assessing the fine” for drug-related offenses. Id. at 228. In so holding, the 

Arizona court pointed out that judges did not “control expenditures from the drug 

enforcement account,” that judges received a salary fixed by statute and not dependent on 

 

convictions and BADT fees. Decisions involving actual misconduct or mistake are not instructive on the 

defendant’s constitutional challenge.
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fines levied in criminal cases, and that judges were not responsible for the executive 

function of raising revenue. Id.

In summary then, the defendant has provided no authority from this State or 

elsewhere to support her assertion that article I, section 8 of the Tennessee Constitution 

should be interpreted as providing greater protection than the Fourteenth Amendment, as 

interpreted in Tumey and its progeny. Nor has she described any other persuasive 

interpretive basis for holding that the Tennessee Constitution provides greater protection 

in this context.

In rejecting the defendant’s due process challenge, we disagree with the Court of 

Criminal Appeals’ conclusion that the BADT fee statute creates a situation analogous to 

that of paying expert witnesses contingency fees. As we have already emphasized, TBI 

forensic scientists receive salaries not dependent in any way on whether the results of the 

forensic tests they perform produce convictions and generate BADT fees. The BADT fee 

statute simply is not similar to an expert witness contingency fee arrangement.

We also disagree with the Court of Criminal Appeals that the BADT fee statute 

creates a situation that “closely resembles cases in which expert witnesses or attorneys 

have been disqualified for conflicts of interest.” Decosimo, 2018 WL 733218, at *17. In 

one of the decisions cited by the Court of Criminal Appeals as support for this 

proposition, a forensic pathologist who had been employed as a defense expert in a civil 

case subsequently sought to testify on behalf of the State in a criminal prosecution of the 

previous client on the same matter. State v. Larkin, 443 S.W.3d 751, 801 (Tenn. Crim. 

App. 2013).14 In the second case, the attorney left a firm where he had worked while 

representing one party to a lawsuit and went to work for a firm that was representing the 

opposing party of the same lawsuit. Analogizing to baseball, this Court stated that the 

lawyer had “not only switched teams, he ha[d] switched teams in the middle of the game

after learning the signals” and that the “new team” “bench[ing]” the lawyer was 

insufficient “to ameliorate the public perception of an unfair game.” Clinard v. 

Blackwood, 46 S.W.3d 177, 188 (Tenn. 2001). This appeal involves neither scenario. It

involves only a facial constitutional challenge to a statute based on an allegation that the 

BADT fee statute creates financial incentives for the TBI, and in particular TBI forensic

scientists, to provide blood alcohol test results that produce convictions and generate 

BADT fees. As already explained, this allegation lacks merit for three reasons: (1) the

Tumey requirements of neutrality that govern the due process analysis under both the 

 

14 Moreover, the Larkin court set forth an applicable legal framework that should be used to 

analyze such cases. Id. at 798-801. The Larkin court then applied that legal framework to the facts of 

that case. Id. at 801-02. In the opinion below in this case, the Court of Criminal Appeals failed to 

identify any structural legal framework for its ultimate conclusion.
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state and federal constitutions do not apply because the TBI forensic scientists do not 

exercise judicial or quasi-judicial functions; and (2) even evaluated against the strict 

Tumey requirements, the defendant’s constitutional challenge fails because the BADT 

fee statute does not provide TBI forensic scientists with either a direct, personal, 

substantial pecuniary interest or a sufficiently substantial institutional financial incentive

that qualifies as a possible temptation to any reasonable forensic scientist to falsify or 

alter test results to produce more convictions and BADT fees; and (3) the BADT fee 

statute does not create a situation comparable to an expert witness contingency fee 

arrangement.

Although we reject the defendant’s constitutional claim, we acknowledge that the 

General Assembly could have devised a “more felicitious way” to provide funding. 

Kaipat, 94 F.3d at 575. Indeed, the Legislature has now done just that by amending the 

BADT fee statute, effective May 21, 2018. We applaud this timely action by the 

Legislature to eliminate the grounds on which the defendant based her claim of a 

statutory appearance of impropriety and her constitutional challenge. However, it 

remains our own judicial obligation to determine, based on relevant precedent, whether 

the statute deprives the defendant of due process guaranteed by both the federal and the 

state constitutions. We conclude that it does not. 

We reiterate that this decision addresses only the statute that existed prior to 

May 21, 2018, the effective date of the legislation amending the BADT fee statute to 

eliminate the bases of the defendant’s constitutional challenge. We note that this decision 

neither mandates nor precludes cross-examination of TBI forensic scientists about the 

BADT fee statute or the giving of a jury instruction regarding this issue. We leave the

resolution of these matters to the sound discretion of trial judges to determine on a caseby-case basis. 

IV. Conclusion

For all these reasons, the judgment of the Court of Criminal Appeals is reversed, 

and the judgment of the trial court is reinstated. Costs of this appeal are taxed to the 

defendant, for which execution may, if necessary, issue.

_________________________________

CORNELIA A. CLARK, JUSTICE