FILED

United States Court of Appeals

Tenth Circuit

February 14, 2017

Elisabeth A. Shumaker

Clerk of Court

PUBLISH

UNITED STATES COURT OF APPEALS

TENTH CIRCUIT

UNITED STATES OF AMERICA,

Plaintiff - Appellant,

v.

TRUNG N. DUONG; WILLIAM M.

BAKER; CURTIS A. ANTHONY,

Defendants - Appellees.

No. 16-6078

APPEAL FROM THE UNITED STATES DISTRICT COURT

FOR THE WESTERN DISTRICT OF OKLAHOMA

(D.C. No. 5:15-CR-00126-C)

K. McKenzie Anderson, Assistant United States Attorney (Mark A. Yancey,

Acting United States Attorney, with her on the briefs), Oklahoma City,

Oklahoma, for Plaintiff-Appellant.

Michael L. Brooks, The Brooks Law Firm (John W. Coyle, III, Coyle Law Firm,

R. Scott Adams and Robert W. Gray, Adams & Associates, P.C., Oklahoma City,

Oklahoma, Richard E. Stout, Stout & Stout, Edmond, Oklahoma, and Laura K.

Deskin, Laura K. Deskin, PLLC, Oklahoma City, Oklahoma, with him on the

brief), Oklahoma City, Oklahoma, for Defendants-Appellees.

Before BRISCOE, EBEL, and MURPHY, Circuit Judges.

MURPHY, Circuit Judge.
I. Introduction

Defendants were charged in a two-count superseding indictment with child

sex trafficking and conspiracy to engage in child sex trafficking. See 18 U.S.C.

§§ 1591, 1594 (2008).1

 The superseding indictment asserted only one basis by

which the government would seek to prove mens rea as to the child victim’s2

age—that Defendants had a reasonable opportunity to observe the child before

engaging in a commercial sex transaction. Defendants moved to dismiss the

indictment, arguing it failed to allege the mens rea element of child sex

trafficking. The district court agreed and dismissed the indictment. 

The government appeals, arguing it can meet its burden of proving the mens

rea with regard to Defendants’ awareness of the child victim’s age by showing

only that Defendants had “a reasonable opportunity to observe” the victim. See

18 U.S.C. § 1591(c). This court agrees and, exercising jurisdiction pursuant to 18

U.S.C. § 3731, reverses the judgment of the district court.3

 

1

Unless otherwise indicated, all citations to 18 U.S.C. § 1591 are to the

version of the statute which took effect on December 23, 2008. See William

Wilberforce Trafficking Victims Protection Reauthorization Act of 2008, Pub. L.

No. 110-457, tit. II, § 222(b)(5), 122 Stat. 5044, 5069-70 (Dec 23, 2008). 

2

The superseding indictment identified two child victims, R.W. and M.M. 

3

Appellees filed a supplemental appendix containing, inter alia, a portion

of the trial transcript in a related case, including images of the child victim. The

unopposed motion to seal this supplemental appendix was conditionally granted. 

The government then moved to strike the supplemental appendix. This appeal can

be resolved by taking judicial notice of all filings of the parties and rulings of the

(continued...)

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II. Background

In 2015, Defendants-Appellees, Trung N. Duong, William M. Baker, and

Curtis A. Anthony, were charged by a federal grand jury with child sex

trafficking and conspiracy to engage in child sex trafficking, in violation of 18

U.S.C. §§ 1591(a)(1), (a)(2), (b)(2), (c), and 1594. The only element of the

charged crime relevant to this appeal is Defendants’ mens rea with respect to the

victim’s status as a minor. See United States v. Brinson, 772 F.3d 1314, 1325

(10th Cir. 2014) (setting out the elements of child sex trafficking).4

 The original

indictment charged three bases to satisfy this element: (1) knowledge, (2) reckless

disregard, and (3) a reasonable opportunity to observe the victim. 

3

(...continued)

district court in United States v. Ehrens, No. 15-CR-200-C (W.D. Okla.). See

United States v. Smalls, 605 F.3d 765, 768 n.2 (10th Cir. 2010). Accordingly, the

government’s motion to strike the supplemental appendix is granted. The motion

to permanently seal the supplement appendix is denied as moot but the

supplemental appendix shall remain sealed pursuant to this court’s order dated

August 18, 2016. The Clerk of the Court shall destroy the supplemental appendix

and all copies in its possession when the time for filing a petition for writ of

certiorari has expired. Should there be a petition for writ of certiorari, the

supplemental appendix shall be disposed of as provided in a further order of this

court.

4

The Brinson court addressed whether the evidence presented at trial was

sufficient to support each of the elements of child sex trafficking. See United

States v. Brinson, 772 F.3d 1314, 1325-26 (10th Cir. 2014). Because the evidence

was sufficient to show the defendant knew or recklessly disregarded the fact the

victim was a minor, Brinson did not consider the question presented in this

appeal. See id. at 1326 (noting the minor’s high school registration form was

found in the defendant’s vehicle and it indicated she was fourteen years old). 

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In December 2015, the government prosecuted a related case against a

fourth defendant, Russell D. Ehrens. United States v. Ehrens, No. 15-CR-200-C

(W.D. Okla.). Ehrens was charged with child sex trafficking. The indictment

alleged he engaged in a commercial sex act with the child victim “knowing and in

reckless disregard of the fact that [the victim] had not attained the age of eighteen

years and having had a reasonable opportunity to observe [the victim].” In the

Ehrens matter, the government sought a jury instruction permitting the jury to

find that Ehrens had the required mens rea with respect to the victim’s age solely

on the basis that he had a reasonable opportunity to observe the victim. The

district court refused to give the instruction. 

In response to the district court’s ruling on the proposed jury instruction in

the Ehrens matter, the government sought a superseding indictment in the instant

prosecution. As to the mens rea requirement with respect to Defendants’

awareness of the child victim’s age, the superseding indictment charged only that

Defendants had a reasonable opportunity to observe the victim. The government

also filed a motion in limine, asserting it intended to prove Defendants’ mens rea

by “elicit[ing] testimony and evidence that each Defendant had a reasonable

opportunity to observe the child that he obtained, not that he had knowledge of

that child’s age or was in reckless disregard of her age.” Accordingly, the

government sought to preclude Defendants from asserting a mistake-of-age

defense or arguing lack of knowledge of the victim’s underage status. The

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district court denied the motion, ruling the government was required to produce

some evidence “regarding Defendants’ knowledge or reckless disregard regarding

the victim’s age.” The court also dismissed the superseding indictment,

concluding it failed to allege each element of the crime charged. In this appeal,

the government challenges the district court’s ruling dismissing the superseding

indictment.

III. Discussion

A. The Substantive Crime

This court reviews the dismissal of an indictment for abuse of discretion. 

United States v. Todd, 446 F.3d 1062, 1067 (10th Cir. 2006). Here, however, the

government is asking this court to resolve the purely legal question of whether 18

U.S.C. § 1591(c) allows a child sex-trafficking conviction when the government

proves the defendant had a reasonable opportunity to observe the victim, but does

not also show the defendant knew or recklessly disregarded the underage status of

the victim. Although this is a question of law reviewed de novo, “[a]n error of

law is per se an abuse of discretion.” United States v. Lopez-Avila, 665 F.3d

1216, 1219 (10th Cir. 2011); see also Todd, 446 F.3d at 1067 (“We review the

sufficiency of an indictment de novo . . . .”). 

“Any exercise in statutory interpretation must begin with an examination of

the plain language at issue.” Tuckel v. Grover, 660 F.3d 1249, 1252 (10th Cir.

2011). During that examination, we must keep in mind that “[t]he plainness or

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ambiguity of statutory language is determined by reference to the language itself,

the specific context in which that language is used, and the broader context of the

statute as a whole.” Robinson v. Shell Oil Co., 519 U.S. 337, 341 (1997). Having

considered all these factors, this court joins the Second and Fifth Circuits in

concluding § 1591(c) is not ambiguous and provides an additional method by

which the government can satisfy the mens rea element with respect to the age of

a victim of child sex trafficking.5

 Accord United States v. Copeland, 820 F.3d

809, 813 (5th Cir. 2016); United States v. Robinson, 702 F.3d 22, 31 (2d Cir.

2012).

At the time the alleged criminal acts occurred, § 1591(a) provided that:

5

Defendants argue the Eleventh Circuit has adopted their interpretation of

18 U.S.C. § 1591(c). In United States v. Mozie, 752 F.3d 1271, 1282 (11th Cir.

2014), the Eleventh Circuit addressed the defendant’s argument that § 1591(c)

was unconstitutional on its face because it lowered the government’s “burden of

proof below the beyond-a-reasonable-doubt standard by allowing conviction

based on a showing that the defendant only recklessly disregarded the victim’s

age.” The court rejected this argument, stating it conflated mens rea with burden

of proof. Id. at 1282. The court also held that the “Due Process Clause does not

prevent Congress from criminalizing conduct that is done with reckless disregard

instead of actual knowledge,” stating that if the government proved “the

defendant had a reasonable opportunity to observe the victim, it need prove only

that he recklessly disregarded the fact that she was under the age of eighteen, not

that the defendant knew she was.” Id. The court repeated this standard when it

addressed the defendant’s challenge to the sufficiency of the evidence but did not

apply it, concluding instead that the evidence was sufficient to show the

defendant knew the ages of the victims. Id. at 1286. Because the Mozie court

neither engaged in an analysis of the statutory language nor applied the standard

it stated, that opinion is not persuasive on the issue of whether a defendant’s

reasonable opportunity to observe the child victim satisfies the mens rea element

as to the victim’s age. 

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Whoever knowingly—

(1) in or affecting interstate or foreign commerce, . . . recruits,

entices, harbors, transports, provides, obtains, or maintains by any

means a person; . . . knowing, or in reckless disregard of the fact . . .

that the person has not attained the age of 18 years and will be

caused to engage in a commercial sex act, shall be punished as

provided in subsection (b).

18 U.S.C. § 1591(a). The parties differ over the interpretation of § 1591(c)

which, on the relevant date, provided that:

In a prosecution under subsection (a)(1) in which the defendant had a

reasonable opportunity to observe the person so recruited, enticed,

harbored, transported, provided, obtained or maintained, the

Government need not prove that the defendant knew that the person

had not attained the age of 18 years.

Id. § 1591(c). Our analysis begins and ends with the statutory language. 

18 U.S.C. § 1591 was promulgated in 2000 as part of the Trafficking

Victims Protection Act of 2000 (the “TVPA”), Pub. L. No. 106-386, div. A,

§ 112(a)(2), 114 Stat. 1464, 1487-88 (Oct. 28, 2000). A stated purpose of the

TVPA was to “combat trafficking in persons, especially into the sex trade,

slavery, and involuntary servitude.” 114 Stat. at 1464. In conformity with that

purpose, § 1591 was added to Title 18 of the United States Code to provide

federal criminal penalties for individuals who force or coerce a person to engage

in a commercial sex act or who cause a minor to engage in a commercial sex act. 

114 Stat. at 1487 (codified at 18 U.S.C. § 1591(a), (b) (2000)). With respect to

criminal activity involving a minor, as originally enacted the statute required the

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government to prove the defendant knew the child victim was a minor. 114 Stat.

at 1487 (codified at 18 U.S.C. § 1591(a) (2000)). If the government met that

burden, the penalty provisions were harsh: imprisonment up to life if the child

victim was less than fourteen years old and imprisonment up to twenty years if

the child victim was between fourteen and eighteen. 114 Stat. at 1487 (codified

at 18 U.S.C. § 1591(b) (2000)). 

The mens rea provision in the original version of § 1591(a) was amended

by the William Wilberforce Trafficking Victims Protection Reauthorization Act

of 2008 (the “TVPRA”), Pub. L. No. 110-457, tit. II, § 222(b)(5), 122 Stat. 5044,

5069 (Dec. 23, 2008). Under the amended statute, a second method by which the

government could prove the relevant mens rea was added to the statute. 

Specifically, the amended statute permitted the government to prove a defendant

acted in “reckless disregard of the fact” that the child victim was a minor. 122

Stat. at 5069 (codified at 18 U.S.C. § 1591(a)). This lessening of the

government’s burden of proof was wholly consistent with the objective of the

TVPRA to “enhance measures to combat trafficking in persons.” 122 Stat. at

5044. 

The specific provision at issue here, § 1591(c), was also added to the

statutory scheme pursuant to the TVPRA. It appears in Title II § 222, a section of

the TVPRA containing multiple statutory amendments under the heading,

“Enhancing penalties for trafficking offenses.” 122 Stat. at 5067. Section

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1591(c) is worded in terms of what the government “need not prove” when the

“defendant had a reasonable opportunity to observe the person so recruited,

enticed, harbored, transported, provided, obtained or maintained.” 122 Stat. at

5069 (codified at 18 U.S.C. § 1591(c)). When this “need not prove” language is

considered against the TVPRA’s stated objective of enhancing measures to

combat human trafficking, the only reasonable reading of § 1591(c) is that

Congress intended to further lessen the government’s burden in situations where

the defendant observed the victim of child sex trafficking.

We next consider § 1591(c) in context. See Holloway v. United States, 526

U.S. 1, 6 (1999) (“In interpreting the statute at issue, we consider not only the

bare meaning of the critical word or phrase but also its placement and purpose in

the statutory scheme.” (quotation omitted)). Reasonably read, § 1591(c), which

expressly states the government “need not prove” knowledge when a defendant

had a reasonable opportunity to observe the child victim, relieves the government

of a burden imposed on it by another provision. That other provision is

§ 1591(a), which permits the government to meet its burden of proving the

relevant mens rea element in one of two ways: (1) the defendant knew the child

victim was a minor, or (2) the defendant recklessly disregarded the fact the child

victim was a minor. 18 U.S.C. § 1591(a). As discussed, this provision was

amended by the TVPRA and decreased the prosecution’s burden of proving mens

rea by permitting it to show reckless disregard in lieu of knowledge. Reading the

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two provisions together to give effect to both, indicates that § 1591 must be

interpreted to give the prosecution three methods by which it can prove the

relevant mens rea. The government can prove knowledge, the most difficult

burden to meet and, prior to the enactment of the TVPRA, the only method

available to the prosecution. With the changes made to § 1591(a) by the TVPRA,

the government can also prove the defendant acted in reckless disregard of the

child victim’s age. Finally, § 1591(c), by its plain language, permits the

government to meet its burden of proving knowledge by showing the defendant

had a reasonable opportunity to view the child victim. 

Defendants argue this interpretation of § 1591(c) effectively relieves the

government of the burden to prove either knowledge or reckless disregard when a

defendant had a reasonable opportunity to observe the child victim,

notwithstanding the fact that § 1591(c) references only knowledge. They assert

this result fails to give effect to all provisions of the statute because the

amendment to § 1591(a) by the TVPRA—which added the reckless disregard

standard—becomes irrelevant. Defendants argue the only way to give effect to all

the statutory language is to read § 1591(c) as permitting the government to meet

the lesser burden of proving reckless disregard only in situations where the

defendant had a reasonable opportunity to observe the child victim. 

Defendants’ assertion is true, in part. Once the government has shown a

defendant had a reasonable opportunity to observe the child victim, it has

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satisfied its burden under the knowledge standard and there is no need for it to

also prove the defendant recklessly disregarded the fact the victim was a minor. 

Thus, Defendants are correct that the government’s burden of proving the relevant

mens rea is fully met in situations where the defendant had a reasonable

opportunity to observe the child victim and the reckless disregard standard has no

application in that situation. Contrary to Defendants’ assertion, however, our

interpretation does not make the reckless disregard standard superfluous. In

situations where a defendant did not have a reasonable opportunity to observe the

child victim and the government does not have direct evidence of knowledge, the

reckless disregard standard provides the government with an avenue to prove the

relevant mens rea. Thus, our interpretation of § 1591(c) does not write the

reckless disregard standard out of the statute.

Defendants also advocate for their interpretation of § 1591(c) on the basis

that it is consistent with the purposes of the TVPRA because it relieves the

government of its burden of proving knowledge, permitting it to prove the lesser

standard of reckless disregard. But § 1591(a) accomplishes that same objective

without § 1591(c). As amended by the TVPRA, § 1591(a) now permits the

government to meet its burden in one of two ways—by proving either (1)

knowledge or (2) reckless disregard. The government is no longer limited to

proof of actual knowledge. Under the interpretation we adopt, both § 1591(a) and

(c) are given effect: (1) § 1591(a) lowers the government’s burden from one of

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proving knowledge to one of proving knowledge or reckless disregard and (2) §

1591(c) further lowers the governments burden in situations where the defendant

had a reasonable opportunity to observe the child victim. Section 1591(c)

specifically states that the government should be relieved of a burden when a

defendant had a reasonable opportunity to observe the victim. Defendants’

interpretation would restrict the government’s ability to show mens rea under the

reckless disregard standard and, thus, is at odds with the plain language of

§ 1591(c), specifically, and the stated purpose of the TVPRA, generally. 

Having examined the plain language of § 1591(c) in the context of the

statute as a whole, this court concludes that any burden on the part of the

prosecution to prove mens rea with respect to the age of the victim of child sex

trafficking is satisfied when the defendant had a reasonable opportunity to view

the victim. This interpretation satisfies the stated purpose of the TVPRA—to

bolster the government’s ability to regulate human trafficking—by lessening the

government’s burden in child sex trafficking cases. It also gives effect to all

provisions of § 1591. As so construed, at the time Defendants were indicted the

government’s burden of showing mens rea with respect to the age of the child

victim could be satisfied in one of three ways: (1) Defendants knew she was a

minor, or (2) Defendants recklessly disregarded the fact she was a minor, or (3)

Defendants had a reasonable opportunity to observe her. Accordingly, the

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superseding indictment which only charged reasonable opportunity to observe the

victim was sufficient and the district court erred by dismissing it.

B. The Conspiracy Charge 

Defendants argue our interpretation of § 1591(c) does not resolve whether

the district court erred by dismissing the conspiracy counts. Relying on a case

from the Seventh Circuit, they assert they could not have agreed to commit the

crime of child sex trafficking without knowing the victim was a minor at the time

they entered into any agreement to violate 18 U.S.C. § 1591. See United States v.

Salgado, 519 F.3d 411, 415 (7th Cir. 2008) (holding “[t]he crime of conspiracy is

committed, or not, before the substantive crime begins”). This argument

confuses the conduct charged in the superseding indictment with Defendants’

defense to that charged conduct. 

Defendants were charged with conspiring with a woman known to them as

“Carmen” to “knowingly recruit, entice, obtain, and maintain, by any means, a

person or persons, having had a reasonable opportunity to observe such person or

persons, and knowing and in reckless disregard of the fact that such person or

persons would be caused to engage in a commercial sex act. The person or

persons so recruited, enticed, obtained, and maintained had not attained the age

of 18 years . . . .” By alleging Defendants had a reasonable opportunity to

observe the victim, the superseding indictment specifically charges that

Defendants had knowledge the victim was a minor for purposes of the conspiracy

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counts. See supra § III.A. Accordingly, the indictment charges the mens rea

element of the crime of conspiring to engage in child sex trafficking and the

district court erred by dismissing it.

IV. Conclusion

The judgment of the district court is reversed and the matter remanded for

further proceedings not inconsistent with this opinion. 

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