                           NOT FOR PUBLICATION                           FILED
                    UNITED STATES COURT OF APPEALS                        JUL 20 2018
                                                                      MOLLY C. DWYER, CLERK
                                                                       U.S. COURT OF APPEALS
                           FOR THE NINTH CIRCUIT

UNITED STATES OF AMERICA,                       No.    16-30215

                Plaintiff-Appellee,             D.C. No.
                                                4:14-cr-06053-EFS-1
 v.

ROBERTO LLERENAS, JR.,
                                                MEMORANDUM*
                Defendant-Appellant.


                   Appeal from the United States District Court
                     for the Eastern District of Washington
                    Edward F. Shea, District Judge, Presiding

                       Argued and Submitted July 12, 2018
                              Seattle, Washington

Before: CLIFTON and NGUYEN, Circuit Judges, and RAKOFF,** Senior District
Judge.




      *
             This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
      **
            The Honorable Jed S. Rakoff, Senior United States District Judge for
the Southern District of New York, sitting by designation.

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      Defendant Roberto L. Llerenas appeals his conviction on four counts of sex

trafficking of children by force, fraud, or coercion in violation of 18 U.S.C. § 1591.

We have jurisdiction under 28 U.S.C. § 1291, and we affirm.

      1.        Llerenas first contends that the phrase “reasonable opportunity to

observe” in 18 U.S.C. § 1591 is unconstitutionally vague. We disagree. Moreover,

there is no doubt here about the reasonableness of Llerenas’s opportunity to

observe the age of his victims, as they were his own biological daughter and her

close friend.

      2.        Lleneras next argues that he was denied his Sixth Amendment right to

a grand jury drawn from sources reflecting a fair cross-section of the community

because Hispanic people were underrepresented. In order to establish a prima facie

violation of the fair cross-section requirement, a defendant must prove, among

other things, that any “underrepresentation is due to systematic exclusion of the

group in the jury-selection process.” Duren v. Missouri, 439 U.S. 357, 364 (1979).

Assuming without deciding that there was in fact underrepresentation, Llerenas has

offered no evidence that it was “inherent in the particular jury-selection process

utilized,” Randolph v. People of the State of Cal., 380 F.3d 1133, 1141 (9th Cir.

2004) (quoting United States v. Jackman, 46 F.3d 1240, 1248 (2d Cir. 1995)), or

“due to the system by which juries were selected,” Duren, 439 U.S. at 367

(emphasis omitted). Llerenas’s expert testified generally that “there’s something


                                            2
systematic going on that’s . . . causing underrepresentation of Hispanics or

Latinos,” but he was unable to identify what that “something” was and relied only

on statistical evidence. Where a defendant offers “nothing more than a simple

disparity between the percentage of Hispanics in the venire and in the County,” he

has not met his burden to show that the disparity was systematic. Randolph, 380

F.3d at 1142.

      3.     Last, Llerenas argues that the district court abused its discretion by

permitting Detective Derek Stigerts to testify as an expert on the relationship

between pimps and prostitutes, and that this testimony violated his rights under the

Confrontation Clause of the Sixth Amendment. The district court denied Llerenas’s

Daubert motion to exclude this testimony in its entirety, but ordered Llerenas to

object at trial if he believed that any specific testimony was unreliable, irrelevant,

or non-expert testimony, and ordered the Government to supplement the expert

report to more clearly delineate the opinions to be offered.

      As a general matter, we have previously held that “the relationship between

prostitutes and pimps is not the subject of common knowledge,” and therefore that

expert testimony in this area can be helpful. United States v. Brooks, 610 F.3d

1186, 1196 (9th Cir. 2010); United States v. Taylor, 239 F.3d 994, 998 (9th Cir.

2001); United States v. Williams, 116 F. App'x 890, 892 (9th Cir. 2004).

Specifically, expert testimony can help put the testimony and past behavior of


                                           3
trafficked persons in context. Brooks, 610 F.3d at 1195-96; Taylor, 239 F.3d at

998. This was fully appropriate here. In Brooks, we also found that a police

detective with less experience than Detective Stigerts was qualified to testify as an

expert in this area. Brooks, 610 F.3d at 1196. Because his proffered testimony

would be helpful, and Detective Stigerts was qualified, the district court did not

abuse its discretion in denying the motion to exclude this testimony wholesale.

      In his actual testimony at trial, however, Detective Stigerts sometimes

strayed from his expertise regarding the relationship between pimps and prostitutes

and simply confirmed—in response to leading questions phrased as

hypotheticals—that the facts of this case are or could be consistent with the other

sex trafficking cases he has investigated. Expert testimony is not merely a vessel

for the Government to get expert endorsement of its closing argument. Cf. United

States v. Mejia, 545 F.3d 179, 190 (2d Cir. 2008) (warning against permitting law

enforcement experts to become “chronicler[s] of the recent past whose

pronouncements on elements of the charged offense serve as shortcuts to proving

guilt”). However, despite the district court’s invitation to defense counsel to make

individual objections during trial, Llerenas made very few, and only two that were

overruled. With these two exceptions, Llerenas therefore failed to preserve his

objections for appeal. See Fed. R. Evid. 103 advisory committee’s note to 2000

amendment (“[W]hen the trial court appears to have reserved its ruling or to have


                                          4
indicated that the ruling is provisional, it makes sense to require the party to bring

the issue to the court’s attention subsequently.”); Adkins v. Mireles, 526 F.3d 531,

542 (9th Cir. 2008) (“[I]n order to appeal an issue on which the district court ruled

in limine, a party must first receive a final ruling on the issue.”).

      Defense counsel did object to the Government’s questioning the witness as

to whether, in his experience, prostitutes are truthful when they talk with law

enforcement. He also objected to the prosecutor’s asking the witness whether

parents have an advantage in trafficking their children. But the district court, rather

than inquiring at this point as to the basis under Federal Rule of Evidence 702 for

either of these opinions—and none is apparent in the record—simply overruled the

objections peremptorily. This error, however, was harmless. Detective Stigerts’

responses to these inquiries were not particularly prejudicial; the Government did

not mention any of Detective Stigerts’ testimony in closing, much less his limited

responses to these few questions; and there was strong, direct evidence of guilt,

including testimony from the victims and multiple other eyewitnesses.

      Because Llerenas failed to object at trial on the ground that Stigert’s

testimony violated his rights under the Confrontation Clause, we review for plain

error. United States v. Reyes–Bosque, 596 F.3d 1017, 1032 (9th Cir. 2010). Experts

may offer opinions based on otherwise inadmissible testimonial hearsay if “experts

in the particular field would reasonably rely on those kinds of facts or data in


                                            5
forming an opinion on the subject,” Fed. R. Evid. 703, and if they are “applying

[their] training and experience to the sources before [them] and reaching an

independent judgment,” as opposed to “merely acting as a transmitter for

testimonial hearsay,” United States v. Gomez, 725 F.3d 1121, 1129 (9th Cir. 2013)

(quoting United States v. Johnson, 587 F.3d 625, 635 (4th Cir. 2009)). Detective

Stigerts’ testimony falls squarely within this category. Though his opinions were

based on, among other things, what he learned during hundreds of sex trafficking

investigations over more than a decade, he did not simply repeat any out-of-court

statements. He instead synthesized the information and reached independent

conclusions about the power dynamics between pimps and prostitutes. Even on

appeal, Llerenas points to no specifically objectionable testimony. Admitting this

testimony was therefore not clear error.

      AFFIRMED.




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