COURT OF APPEALS 

DECISION 

DATED AND FILED

August 6, 2019 

Sheila T. Reiff 

Clerk of Court of Appeals 

 

NOTICE 

 This opinion is subject to further editing. If 

published, the official version will appear in 

the bound volume of the Official Reports. 

A party may file with the Supreme Court a 

petition to review an adverse decision by the 

Court of Appeals. See WIS. STAT. § 808.10 

and RULE 809.62. 

Appeal No. 2018AP1167 Cir. Ct. No. 2017TR1318

STATE OF WISCONSIN IN COURT OF APPEALS 

DISTRICT III 

COUNTY OF DUNN, 

 PLAINTIFF-RESPONDENT, 

 V. 

CASHE L. NEWVILLE, 

 DEFENDANT-APPELLANT. 

 APPEAL from an order of the circuit court for Dunn County: 

ROD W. SMELTZER, Judge. Affirmed. 

¶1 SEIDL, J.1 Cashe Newville appeals an order that adjudged him 

guilty of first-offense operating while under the influence of a controlled 

substance (OWI), contrary to WIS. STAT. § 346.63(1)(a). He contends the circuit 

 

1

 This appeal is decided by one judge pursuant to WIS. STAT. § 752.31(2) (2017-18). All 

references to the Wisconsin Statutes are to the 2017-18 version unless otherwise noted. 
No. 2018AP1167 

2 

court erred by denying his motion to suppress the results of an evidentiary 

chemical test of his blood. We reject Newville’s arguments and conclude the 

court properly denied his suppression motion. We therefore affirm. 

BACKGROUND 

¶2 Dunn County sheriff’s deputy Brandon Scott stopped a vehicle 

operated by Newville on February 17, 2017, and ultimately arrested Newville for 

OWI. Newville consented to an evidentiary chemical test of his blood. However, 

he subsequently moved to suppress the results of the blood test, arguing Scott 

lacked: (1) reasonable suspicion to conduct a traffic stop of Newville’s vehicle; 

(2) reasonable suspicion to administer field sobriety tests; (3) probable cause to 

administer a preliminary breath test; and (4) probable cause to arrest Newville for 

OWI. 

¶3 Scott was the only witness to testify at the hearing on Newville’s 

suppression motion. The following facts are taken from his testimony and from 

our review of a dashboard camera video of the stop, which was played for the 

circuit court during the suppression hearing. 

¶4 At approximately 10:40 p.m. on February 17, 2017, Scott was on 

patrol driving eastbound on Highway 12 in Dunn County. He observed a 

vehicle—whose driver was later identified as Newville—traveling westbound on 

Highway 12. Using his radar unit, Scott discerned that Newville’s vehicle was 

traveling at a rate of forty-seven miles-per-hour in a fifty-five-miles-per-hour 

zone. After the two vehicles passed each other, Scott looked behind him and 

noticed that the license plate lamps on the back of Newville’s vehicle were 

inoperable. 
No. 2018AP1167 

3 

¶5 Scott turned his vehicle around and began following Newville. He

noted that the speed of Newville’s vehicle fluctuated between forty and fortyseven miles-per-hour, which he found suspicious given the speed limit of fifty-five 

miles-per-hour. He continued to follow Newville’s vehicle as it turned onto 690th 

Avenue. As the vehicle traveled down 690th Avenue, Scott saw it “operating over 

the centerline or over the center of the roadway multiple times.”2 Scott then 

activated his emergency lights and stopped Newville’s vehicle. 

¶6 After approaching Newville’s vehicle and asking him for 

identification, Scott questioned Newville about his slower-than-normal speed. 

Newville responded that Scott’s headlights had been bothering him. Scott then 

asked Newville where he was going, and Newville responded that he was 

“heading home” to the Village of Knapp. When Scott pointed out that Newville’s 

route was not the fastest way to get to the Village of Knapp, Newville again stated 

that he had been trying to avoid Scott’s headlights. Newville then confirmed that 

the license plates on his vehicle did not belong to that vehicle, stating he had just 

purchased the vehicle and the seller was not the vehicle’s registered owner.

¶7 Newville then asked if Scott wanted him to get out of the car, and

Scott stated Newville could do so. When Newville opened his door, Scott noticed 

a “torch lighter” in the vehicle’s driver’s side compartment. Scott testified that 

item raised his suspicions because torch lighters “are commonly used with 

methamphetamine use.” Scott then questioned Newville about his prior drug use. 

Newville stated he would be reporting to jail that Sunday on a charge of 

 

2

 Scott later clarified—and the dashboard camera video confirms—that there is no 

painted centerline on the relevant section of 690th Avenue. 
No. 2018AP1167 

4 

possession of a methamphetamine pipe. He told Scott he had last used 

methamphetamine two months before the stop. 

¶8 Scott then asked Newville, “Would you mind sticking out your 

tongue for me?” Newville did so, and Scott noticed a yellow film on the back of 

Newville’s tongue. Based on his training and experience, Scott believed that 

yellow film was an indicator of methamphetamine use. 

¶9 Thereafter, Scott had Newville perform a series of field sobriety 

tests. Scott did not observe any clues of intoxication on the horizontal gaze 

nystagmus (HGN) test or the one-leg stand test. However, Scott observed four 

clues of intoxication when Newville attempted to complete the walk-and-turn test. 

Scott also asked Newville to recite the alphabet, which Newville was unable to do 

successfully. In addition, Newville was unable to count backwards from fifty-four 

to thirty-six. 

¶10 Scott also asked Newville to perform the Romberg test. He 

instructed Newville to tilt his head back, close his eyes, and tell Scott when he 

believed thirty seconds had passed. The first time Newville performed the 

Romberg test, he estimated that thirty seconds had passed after only three seconds. 

The second time Newville performed the test, he estimated thirty seconds had 

passed after six seconds. 

¶11 At the suppression hearing, Scott testified he had observed 

individuals who were under the influence of alcohol or other drugs on numerous 

occasions, and he believed at the time of the stop that Newville was “under the 

influence of something.” He therefore requested a preliminary breath test, which 

did not detect the presence of any alcohol in Newville’s system. 
No. 2018AP1167 

5 

¶12 Following the preliminary breath test, Scott again asked Newville 

when he had last used methamphetamine. Newville responded that he had used 

methamphetamine one week before the stop, and methamphetamine would 

therefore “show up” on a test of his blood. After being informed that a blood test 

would not show methamphetamine use from one week prior, Newville stated he 

had used methamphetamine five days before the stop. He reiterated that he 

believed his blood would test positive for methamphetamine. Scott then placed 

Newville under arrest for OWI. 

¶13 On cross-examination during the suppression hearing, Scott 

conceded that Newville was cooperative during the traffic stop; that he was honest 

about his license plate lamps being out and his vehicle’s lack of registration; that 

he did not fall or lose his balance when exiting his vehicle; and that he 

appropriately followed Scott’s commands. Scott also conceded that he did not 

smell any alcohol on Newville. In addition, Scott conceded that he had not been 

trained as a drug recognition expert. Scott further admitted that the alphabet test 

and the counting backwards test are not standardized field sobriety tests, unlike the 

HGN, the one-leg stand, and the walk-and-turn tests. 

¶14 The circuit court denied Newville’s suppression motion. Although

the court agreed that Newville’s slower-than-normal speed and driving over the 

center of 690th Avenue were “suspicious” behaviors, it concluded the inoperable 

license plate lamps alone gave Scott reasonable suspicion to stop Newville’s 

vehicle. The court further concluded that Scott’s observations during the stop 

gave him probable cause to arrest Newville for OWI. After the court denied his 

suppression motion, Newville entered a no contest plea to the first-offense OWI 

charge. Newville now appeals, challenging only the denial of his suppression 

motion. 
No. 2018AP1167 

6 

DISCUSSION 

¶15 When reviewing a circuit court’s decision on a motion to suppress, 

we apply a two-step standard of review. State v. Eason, 2001 WI 98, ¶9, 245 

Wis. 2d 206, 629 N.W.2d 625. We will uphold the circuit court’s factual findings 

unless they are clearly erroneous. Id. However, we independently review whether 

those facts violate constitutional principles. Id.

I. Reasonable suspicion to conduct an impaired driving investigation 

¶16 “[A]n officer’s reasonable suspicion that a motorist is violating or 

has violated a traffic law is sufficient for the officer to initiate a stop of the 

offending vehicle.” State v. Houghton, 2015 WI 79, ¶5, 364 Wis. 2d 234, 868 

N.W.2d 143. In determining whether reasonable suspicion existed, the “crucial 

question is whether the facts of the case would warrant a reasonable police officer, 

in light of his or her training and experience, to suspect that the individual has 

committed, was committing, or is about to commit a crime” or traffic violation. 

See State v. Post, 2007 WI 60, ¶13, 301 Wis. 2d 1, 733 N.W.2d 634. The officer 

must be able to point to specific and articulable facts which, taken together with 

rational inferences from those facts, reasonably warrant the intrusion of the stop. 

Id., ¶10. “The reasonableness of a stop is determined based on the totality of the 

facts and circumstances.” Id., ¶13. 

¶17 Newville concedes on appeal that Scott had reasonable suspicion to 

stop his vehicle based on its inoperable license plate lamps. See Houghton, 364 

Wis. 2d 234, ¶30 (“[R]easonable suspicion that a traffic law has been or is being 

violated is sufficient to justify all traffic stops.”). He argues, however, that Scott 

lacked reasonable suspicion to expand the scope of the stop in order to conduct an 

impaired driving investigation. His argument in this regard misses the mark. 
No. 2018AP1167 

7 

Based on the three factors discussed below, we conclude Scott already possessed 

reasonable suspicion that Newville was operating while intoxicated at the time he 

stopped Newville’s vehicle. 

¶18 First, while Newville was driving on Highway 12, Scott observed 

that his vehicle’s speed was fluctuating between forty and forty-seven miles-perhour—i.e., eight to fifteen miles-per-hour below the speed limit. A driver’s 

“noticeably-slower-than-the-speed-limit driving is a specific and articulable factor 

supporting reasonable suspicion” that the driver may be impaired. State v. 

Wheaton, Nos. 2011AP1928 and 2012AP73-CR, unpublished slip op. ¶26 (WI 

App Oct. 25, 2012).3

¶19 Second, after Newville’s vehicle turned onto 690th Avenue, Scott 

saw it “operating over the centerline or over the center of the roadway multiple 

times.” Our review of the dashboard camera video confirms that Scott’s vehicle 

repeatedly crossed over the center of 690th Avenue. This case is therefore similar 

to State v. Popke, 2009 WI 37, ¶36, 317 Wis. 2d 118, 765 N.W.2d 569, in which 

our supreme court concluded an officer had reasonable suspicion that a defendant 

was operating while intoxicated when the defendant “was driving with threequarters of the vehicle left of the center of the road; the vehicle then moved back 

into the proper lane but almost hit the curb; [and] the defendant’s vehicle then 

faded back towards the middle of the road and nearly struck the median.” 

Elsewhere, this court has similarly concluded that deviations outside of a driver’s 

lane can give rise to reasonable suspicion of intoxicated driving. See, e.g., State v. 

 

3

 An authored, unpublished opinion issued on or after July 1, 2009, may be cited for its 

persuasive value. WIS. STAT. RULE 809.23(3)(b). 
No. 2018AP1167 

8 

Wegener, No. 2010AP452-CR, unpublished slip op. ¶¶6-7 (WI App Aug. 18, 

2010); County of Milwaukee v. Manske, No. 2009AP1779, unpublished slip op. 

¶16 (WI App June 8, 2010). 

¶20 Third, the stop in this case occurred at approximately 10:40 p.m. In 

Post, our supreme court deemed it relevant to the reasonable suspicion inquiry that 

the defendant’s poor driving took place at 9:30 p.m. Post, 301 Wis. 2d 1, ¶36. 

The court explained, “While this is not as significant as when poor driving takes 

place at or around ‘bar time,’ it does lend some further credence to [the officer’s] 

suspicion that [the defendant] was driving while intoxicated.” Id. Similarly, in 

this case, the fact that Newville’s suspicious driving behaviors occurred at around 

10:40 p.m. gave further support to Scott’s suspicion that Newville was driving 

while impaired. 

¶21 Based on factors discussed above, we conclude Scott already had

reasonable suspicion to believe that Newville was operating while intoxicated at 

the time he stopped Newville’s vehicle. Accordingly, Scott did not impermissibly 

expand the scope of the stop by conducting an impaired driving investigation. 

II. Reasonable suspicion to administer field sobriety tests 

¶22 Newville next argues that Scott lacked reasonable suspicion to 

administer field sobriety tests. See Village of Little Chute v. Rosin, 

No. 2013AP2536, unpublished slip op. ¶17 (WI App Feb. 25, 2014) (“[A]n officer 

must have reasonable suspicion that the driver is impaired before requesting field 

sobriety tests.”). We disagree. 

¶23 As discussed above, Scott had reasonable suspicion that Newville 

was operating while intoxicated even before the stop based on: (1) Newville’s 
No. 2018AP1167 

9 

slower-than-normal speed; (2) Newville’s repeated deviations over the center of 

690th Avenue; and (3) the time of night. During the stop, two additional facts 

came to light that further supported Scott’s reasonable suspicion. First, Scott 

observed a torch lighter in the driver’s side compartment of Newville’s vehicle, 

which raised Scott’s suspicion based on his prior knowledge that torch lighters 

“are commonly used with methamphetamine use.” Second, when questioned by 

Scott about prior drug use, Newville admitted that he had used methamphetamine 

two months before the stop. We conclude these facts—combined with the facts 

that were known to Scott at the time of the stop—gave rise to a reasonable 

suspicion that Newville was operating under the influence and therefore justified 

the administration of field sobriety tests. 

¶24 In his appellate briefs, Newville makes much of the fact that Scott 

asked Newville to stick out his tongue before administering field sobriety tests. 

Scott noticed a yellow film on the back of Newville’s tongue, and based on his 

training and experience, he believed that film was an indicator of 

methamphetamine use. Newville contends that by asking to look at his tongue, 

Scott conducted an unconstitutional warrantless search of Newville’s person. He 

therefore argues the yellow film that Scott observed “must be ignored” and 

“cannot be used to justify the administration of field sobriety tests, the arrest, or 

the preliminary breath test.” 
No. 2018AP1167 

10 

¶25 We need not resolve whether Scott performed an unconstitutional 

warrantless search by asking Newville to stick out his tongue.4 Even ignoring 

Scott’s testimony regarding the yellow film on Newville’s tongue, we conclude 

Scott had reasonable suspicion to administer field sobriety tests, for the reasons 

explained above. In addition, as discussed below, we conclude Scott had probable 

cause to administer a preliminary breath test and to arrest Newville for OWI, even 

absent his observation of the yellow film on Newville’s tongue. As a result, we 

need not further address Newville’s argument that Scott’s request to see his tongue 

was an unconstitutional warrantless search.5

 

4

 Scott’s search of Newville’s tongue may have been constitutionally permissible under 

the consent exception to the warrant requirement. See State v. Artic, 2010 WI 83, ¶29, 327 

Wis. 2d 392, 786 N.W.2d 430. However, Dunn County does not develop any argument that the 

consent exception is applicable here, and we will not abandon our neutrality to develop that 

argument for Dunn County. See Industrial Risk Insurers v. American Eng’g Testing, Inc., 2009 

WI App 62, ¶25, 318 Wis. 2d 148, 769 N.W.2d 82. 

5

 As noted above, Newville initially argues that because of the allegedly unconstitutional 

search, the yellow film that Scott observed on his tongue “must be ignored” and “cannot be used 

to justify the administration of field sobriety tests, the arrest, or the preliminary breath test.” 

However, Newville later makes a single-sentence argument that because the search of his tongue 

was unconstitutional, “all evidence gathered as a result of the search must be suppressed.” In 

support of that assertion, Newville cites Wong Sun v. United States, 371 U.S. 471 (1963), and 

State v. Knapp, 2005 WI 127, 285 Wis. 2d 86, 700 N.W.2d 899, without any explanation or 

elaboration. 

Both Wong Sun and Knapp deal with the fruit of the poisonous tree doctrine. See Wong 

Sun, 371 U.S. at 485-88; Knapp, 285 Wis. 2d 86, ¶24. Aside from citing these cases, however, 

Newville does not develop any argument that the fruit of the poisonous tree doctrine applies in 

this case and requires the exclusion of all evidence gathered following the allegedly 

unconstitutional search of his tongue. Again, we will not abandon our neutrality to develop 

arguments for a party. See Industrial Risk Insurers, 318 Wis. 2d 148, ¶25. As such, we decline 

to further address Newville’s contention that all evidence gathered following the search of his 

tongue must be suppressed. See State v. Pettit, 171 Wis. 2d 627, 647, 492 N.W.2d 633 (Ct. App. 

1992) (court of appeals need not address undeveloped arguments). 
No. 2018AP1167 

11 

III. Probable cause to administer a preliminary breath test 

¶26 Newville next argues that Scott lacked probable cause to administer 

a preliminary breath test. WISCONSIN STAT. § 343.303 permits an officer to 

request a preliminary breath test if he or she has “probable cause to believe” that a 

person was operating while intoxicated. The statutory term “probable cause to 

believe” “refers to a quantum of proof greater than the reasonable suspicion 

necessary to justify an investigative stop ... but less than the level of proof 

required to establish probable cause for arrest.” County of Jefferson v. Renz, 231 

Wis. 2d 293, 316, 603 N.W.2d 541 (1999). 

¶27 In this case, we agree with Dunn County that Scott had probable

cause to believe Newville was operating while intoxicated and could therefore 

administer a preliminary breath test. At the time Scott requested the preliminary 

breath test, he was aware that Newville had been driving at a lower-than-normal 

speed at approximately 10:40 p.m. and had crossed the center of 690th Avenue 

multiple times. Scott was also aware that Newville had a torch lighter in the front 

passenger compartment of his car, which Scott testified was commonly associated 

with methamphetamine use, and that Newville had admitted using 

methamphetamine two months before the stop. 

¶28 In addition to these facts, Scott was also aware that Newville had 

failed several field sobriety tests. Scott observed four clues of intoxication when 

Newville attempted to complete the walk-and-turn test. Newville was also unable 

to recite the alphabet and could not count backwards from fifty-four to thirty-six. 

Further, when Newville performed the Romberg test, he initially estimated that 

thirty seconds had passed after only three seconds, and then after only six seconds. 

Newville’s performance on these field sobriety tests, when combined with the 
No. 2018AP1167 

12 

other facts discussed above, was sufficient to create probable cause to believe that 

Newville was operating while intoxicated, as required for the administration of a 

preliminary breath test. 

¶29 Newville argues the results of the field sobriety tests cannot be used 

to support probable cause to administer a preliminary breath test because all of the 

field sobriety tests except the Romberg test “measured for alcohol impairment, 

which [Scott] did not suspect Newville of.” We reject this argument for two 

reasons. 

¶30 First, Scott never testified that he did not suspect Newville of 

alcohol impairment. Rather, he testified he suspected that Newville was “under 

the influence of something.” 

¶31 Second, while Scott testified that a drug recognition expert performs 

“a different battery of field sobriety tests than you would do in the case where you 

suspect someone of alcohol consumption,” and that those tests “are designed to 

measure narcotics and other drugs” rather than alcohol, he never testified that the 

field sobriety tests he administered in this case cannot be used to detect drug 

impairment. Notably, Newville does not cite any legal authority supporting the 

proposition that the field sobriety tests Scott administered can only be used to 

detect alcohol impairment. See State v. Pettit, 171 Wis. 2d 627, 646, 492 N.W.2d 

633 (Ct. App. 1992) (court of appeals need not address arguments unsupported by 

references to legal authority). Moreover, at least one of our prior opinions has 

rejected Newville’s argument that field sobriety tests traditionally associated with 

alcohol impairment cannot also be used to support probable cause that the 

defendant was operating under the influence of drugs. See State v. Mueller, 

No. 2018AP44-CR, unpublished slip op. ¶¶5, 20 (WI App Feb. 12, 2019) 
No. 2018AP1167 

13 

(rejecting the defendant’s argument that the field sobriety tests in that case—the 

walk-and-turn and one-leg stand tests—were “of limited probative value” for drug 

impairment because they were “designed to detect impairment from alcohol”). 

¶32 Newville next argues that the results of the field sobriety tests did 

not give rise to probable cause for a preliminary breath test because two of the 

tests that indicated impairment—the alphabet test and the counting backwards 

test—are not standardized field sobriety tests. Again, however, Newville fails to 

cite any legal authority in support of his claim that a defendant’s performance on 

nonstandardized field sobriety tests may not be considered when determining 

whether an officer had probable cause to believe the defendant was operating 

while impaired. We therefore reject his argument in that regard. See Pettit, 171 

Wis. 2d at 646. 

¶33 Newville also argues that his performance on the Romberg test could 

not be used to support probable cause for a preliminary breath test because 

evidence concerning the result of that test “requires qualified expert testimony.” 

Newville contends Scott could not provide such testimony because he was not 

trained or certified as a drug recognition expert. Once again, however, Newville 

fails to cite any legal authority supporting his claim that only a certified drug 

recognition expert may testify regarding a defendant’s performance on the 

Romberg test. See id.

¶34 To the contrary, in City of West Bend v. Wilkens, 2005 WI App 36, 

¶1, 278 Wis. 2d 643, 693 N.W.2d 324, we held that field sobriety tests “are not 

scientific tests. They are merely observational tools that law enforcement officers 

commonly use to assist them in discerning various indicia of intoxication, the 

perception of which is necessarily subjective.” We further stated, “[I]t is not 
No. 2018AP1167 

14 

beyond the ken of the average person to understand such indicia and to form an 

opinion about whether an individual is intoxicated.” Id. We agree with Dunn 

County that our reasoning in Wilkens is applicable to Scott’s use of the Romberg 

test in this case, as “[a]sking a person to close their eyes [and] estimate the passing 

of thirty seconds is not a complicated test to administer,” and Newville’s 

performance on the Romberg test was “so woeful that [its] evidentiary value as to 

impairment [was] readily apparent.” We therefore reject Newville’s argument that 

his performance on the Romberg test cannot be considered in determining whether 

Scott had probable cause to administer a preliminary breath test. 

IV. Probable cause to arrest Newville for OWI 

¶35 Finally, Newville argues Scott lacked probable cause to arrest him 

for OWI. Warrantless arrests are not lawful except when supported by probable 

cause. State v. Lange, 2009 WI 49, ¶19, 317 Wis. 2d 383, 766 N.W.2d 551. 

“Probable cause to arrest is the quantum of evidence within the arresting officer’s 

knowledge at the time of the arrest which would lead a reasonable police officer to 

believe that the defendant probably committed or was committing a crime.” State 

v. Secrist, 224 Wis. 2d 201, 212, 589 N.W.2d 387 (1999). 

¶36 Here, the facts discussed above that gave rise to probable cause for a 

preliminary breath test also support a determination that Scott had probable cause 

to arrest Newville for OWI. In addition to those facts, Newville admitted after the 

preliminary breath test that he had last used methamphetamine only one week 

before the stop, which was contrary to his prior admission that he had last used 

methamphetamine two months before the stop. Newville subsequently admitted 

that he had actually used methamphetamine only five days before the stop. In 

addition, Newville twice conceded following the preliminary breath test that 
No. 2018AP1167 

15 

methamphetamine would “show up” on a test of his blood. These statements, in 

conjunction with the other facts discussed above, would have led a reasonable 

officer to believe that Newville had probably committed OWI. See Secrist, 224 

Wis. 2d at 212. As such, we reject Newville’s argument that Scott lacked 

probable cause to arrest him. 

 By the Court.—Order affirmed. 

 This opinion will not be published. See WIS. STAT. RULE

809.23(1)(b)4.