Opinion for the Court filed by Chief Judge WALD.
Appellant Eddie Lee Anderson was convicted of nine violations of the Mann Act, 18 U.S.C. § 2421 (interstate transportation of females for prostitution) and ten violations of 18 U.S.C. § 2423 (interstate transportation of minors for prostitution); Anderson’s appeal raises three issues: first, whether the district court properly denied Anderson’s motion to suppress evidence seized in Atlantic City pursuant to a New Jersey state warrant and in Las Ve *386 gas, Nevada pursuant to a federal warrant; second, whether appellant was properly sentenced to consecutive prison terms for conduct that violated both § 2421 and § 2423; and third, whether it was reversible error for the district court to admit the “expert” testimony of Dr. Lois Lee, a government witness, on the modus oper-andi of pimps and on the pimp-prostitute relationship. For the reasons set forth below, we reject all three challenges and affirm appellant’s conviction.
I. BACKGROUND
In a 29-count indictment filed on May 9, 1985, appellant Anderson was charged with transporting females in interstate commerce for prostitution, 18 U.S.C. § 2421, transporting minors in interstate commerce for prostitution, 18 U.S.C. § 2423,
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inducing a female to engage in prostitution, D.C. Code § 22-2705, and obstructing justice, 18 U.S.C. § 1503. The indictment alleged that appellant, in ten different “transporta-tions” occurring between July 1980 and October 1984, moved a “circuit” of females, including juveniles, across state lines for the purpose of prostitution.
See United States v. Anderson,
Prior to trial, the defense filed a motion to suppress evidence obtained pursuant to two search warrants — one issued by a judge of the New Jersey Superior Court authorizing the search of a motel room in Atlantic City, and the other issued by a federal magistrate authorizing the search of an apartment in Las Vegas, Nevada. See id. at 1336-37. Anderson contended that the evidence seized on December 7, 1984 in Atlantic City was inadmissable because (1) the warrant for the search did not specify on its face the items to be seized and therefore was invalid as a “general warrant” and (2) although circumstances required a federal warrant, this one was neither issued nor executed in conformity with Federal Rule of Criminal Procedure 41 in that it alleged only a violation of state law and provided, without reasonable cause, for nighttime execution only. See id. at 1338-39. As to the federal warrant issued in the District of Nevada, Anderson contended (1) that it also violated the federal prescription against general warrants and (2) that the underlying affidavits were tainted and therefore invalid to the extent that they were based on the illegal seizure in Atlantic City. See Motion to Suppress Evidence at 6 (June 28, 1985).
The district court agreed with appellant that the warrant for the Atlantic City search was facially deficient because it failed to particularize the items to be seized. The trial court concluded, however, that the exclusionary rule should not apply because there was an objectively reasonable basis for the officer's mistaken belief that the warrant was valid. See
At trial, the government’s principal witnesses were five women who had been named as victims in the indictment. These women testified that they were prostitutes, that Mr. Anderson was their pimp, that he transported them and other women in interstate commerce as charged in the indictment and that many of the women who worked for appellant had been arrested for prostitution during the period covered by the indictment. See, e.g., Transcript (Tr.) VI at 296-97, 324-28, 534. Several of the *387 government witnesses testified to beatings they either received from appellant or saw appellant give to others. See, e.g., id. at 291-92, 585-86, 904, 923-25, 943-44, 988-89. The government also called various police officers and the parents of some of the prostitute-witnesses.
Finally, the government’s last witness was Dr. Lois Lee, a sociologist, who testified as an expert on the modus operandi of pimps and on the nature of the relationship between pimps and prostitutes. Dr. Lee testified, among other things, that prostitutes are typically vulnerable girls who become so financially and psychologically dependent on their pimps that they are unable to leave them even when beaten. See, e.g., Tr. XIII at 175, 176-81. Dr. Lee also mentioned several ways in which the pimp-prostitute relationship might end, including the prostitute becoming pregnant, moving to another pimp, going on welfare, committing suicide, or being murdered by a customer. See Tr. XIV at 8-9.
The defendant’s witnesses — which included Anderson himself as well as several young women listed as victims in the indictment — testified that Anderson was not a pimp but a professional gambler, who moved from city to city and who spent considerable time in the gambling casinos of Las Vegas and Atlantic City. The young women testified that although they knew appellant, they had never worked as prostitutes for him or given him money. When confronted on cross-examination with their earlier, contradictory testimony before the grand jury, several of the women claimed that they had been pressured by the government to testify falsely against Anderson. See Tr. XVII at 69, 76, 105-06. Anderson admitted that he knew, and had received love letters from, the government’s witnesses who claimed they had worked as prostitutes for him. See Tr. XVIII at 118, 127.
The jury found appellant guilty of nine violations of 18 U.S.C. § 2421, ten violations of 18 U.S.C. § 2423, and one violation of D.C.Code § 22-2705. The jury acquitted appellant of the obstruction of justice charge. 2 On December 3, 1985, appellant received the following sentence: five years’ imprisonment and a $5,000 fine for each of the violations of 18 U.S.C. § 2421, the prison terms to run concurrently; from one to five years’ imprisonment and a $1,000 fine for the violation of D.C.Code § 22-2705, the prison term to run concurrently with the terms imposed for the violations of 18 U.S.C. § 2421; and ten years’ imprisonment and a $10,000 fine for each of the violations of 18 U.S.C. § 2423, the prison terms to run concurrently with each other but consecutively with the other prison terms imposed. This appeal followed.
II. The Fourth Amendment Issue
Appellant challenges the district court’s refusal to suppress evidence seized pursuant to a state warrant issued by a judge of the New Jersey Superior Court for the search of a motel room in Atlantic City, and a federal warrant issued by a magistrate in the District of Nevada authorizing the search of an apartment in Las Vegas. See
Upon returning to the offices of the Atlantic City Police Department, the officers were advised by a reliable source that appellant had moved himself and a large amount of personal property to Room 224 at the Village Motel in Atlantic City. Based on this information, Detective John Imfeld of the Atlantic City Police Department prepared an affidavit in support of an application for a state search warrant. Im-feld’s affidavit related the earlier unsuccessful effort to execute the federal warrant, specifically recited the items listed in the federal warrant, and referred to the information about Anderson obtained by the police from four women who claimed they had worked as prostitutes for him. See id. at 1337-38. Haggerty, Imfeld, and another officer then applied to a New Jersey Superior Court judge for a state search warrant. The officers presented to the judge not only the state officer’s affidavit, but also the (unexecuted) federal warrant issued earlier that day along with the underlying federal officers’ affidavit. After reading these materials, the state judge issued a search warrant at approximately 7:30 p.m. on December 7, 1984. The warrant recited that “there had been and now is located [at Room 224 of the Village Motel] certain property used as a means of committing a misdemeanor in violation of the laws of the State of New Jersey to wit: Interstate transportation of persons for the purpose of prostitution, 2C:34-l(b) 5.” Although the warrant authorized a search for “the above-described items and other associated paraphernalia,” it failed to include any specific description of the items to be seized. The underlying affidavits were neither incorporated by nor attached to the warrant. In addition, the warrant provided that it was to be executed within the next ten days between the hours of 7:30 p.m. and 6:00 a.m. Upon receipt of the warrant, the officers proceeded to the Village Motel and executed the warrant at approximately 8:00 p.m. The search took approximately thirty minutes. See id. at 1338; Tr. X at 128-130, 132.
A few months later, on February 1,1985, agents of the FBI obtained a federal warrant from a magistrate in the District of Nevada authorizing the search of an apartment in Las Vegas. The affidavit prepared by FBI agent Roger Young in support of the warrant described Haggerty’s investigation in detail and referred to the seizures made in Atlantic City. The Nevada warrant specifically identified the items to be seized, which included “concealed photographs, photo albums, evidence of travel, ... which are the fruits, instrumentalities and/or evidence of one or more violations of Title 18, United States Code, Sections 2421 and 2423 and Title 22, D.C.Code, Section 2705.” District of Nevada Search Warrant at 1-2 (Feb. 1, 1985).
Anderson’s first contention is that the district court should have suppressed the evidence obtained in Atlantic City because the warrant authorizing that search failed to specify the items to be seized. We disagree. Like the district court, we believe that the Supreme Court’s holding in
Massachusetts v. Sheppard,
The Supreme Court held that federal law did not require suppression of the seized evidence, because the officers believed that the warrant authorized the search they conducted, and, “there was an objectively reasonable basis for the officers’ mistaken belief.”
Id.
at 988,
We agree with the trial court that there is “little or no distinction between the facts in
Sheppard
and those in this case.”
Appellant’s second argument is that the evidence seized in Atlantic City should have been excluded because the warrant authorizing the search failed to comply with Federal Rule of Criminal Procedure 41. The district court rejected this claim, relying on
United States v. Krawiec,
We now consider whether the particular deviations from Rule 41 that occurred in the Atlantic City search justify suppression of the evidence seized. The government concedes that the New Jersey warrant failed to comport with the requirements of Rule 41 in two respects: it authorized a nighttime search without reasonable cause, and it failed to state a violation of federal law. See Appellee’s Brief at 28-29. The government claims, however, that these were only technical defects, which do not call for exclusion of the evidence produced by the search. We agree. While it is true that the state warrant improperly authorized a nighttime search, in actual fact that Atlantic City search took place from approximately 8:00 to 8:30 p.m., which is considered daytime for the purposes of Rule 41. 3 Furthermore, although the warrant specified only a violation of state law, the conduct described in the warrant and in the underlying affidavit (interstate transportation of women for prostitution) plainly constituted a violation of federal law (18 U.S.C. § 2421); the officers had already obtained a federal search warrant on the basis of the same information earlier that day. The technical defects in the New Jersey warrant did not implicate in any way the essential requirements for a valid federal search warrant.
The Supreme Court has made clear “that technical defects in a warrant do not call for or permit exclusion of what the search produces.”
United States v. Hornick,
Finally, we affirm the decision of the trial court not to exclude the evidence seized in Las Vegas, Nevada. Like the district court, we find, contrary to appellant’s assertion, that the Nevada warrant listed with adequate specificity the items to be seized in Las Vegas. And since we agree with the lower court that the evidence obtained pursuant to the New Jersey state warrant was admissible, we find no merit to appellant’s assertion that the evidence seized in Las Vegas ought to have been excluded as the illegal “fruit” of the Atlantic City search.
III. Appellant’s Double Jeopardy Challenge
The indictment against appellant alleged ten different trips, on which he pur
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portedly moved various females, including minors, across state lines for the purpose of prostitution. The jury found Anderson guilty of nine violations of 18 U.S.C. § 2421 and ten violations of 18 U.S.C. § 2423. The district court sentenced Anderson to five years for transporting females in violation of § 2421 and to ten years for transporting individuals under the age of 18 in violation of § 2423 — the five and ten year terms to be served consecutively. On appeal, Anderson argues that each of his ten trips constituted a single transaction, and that the trial court, in sentencing him to consecutive prison terms for his violations of § 2421 and § 2423 on each trip, violated his fifth amendment right against multiple punishment for the same offense. We agree with appellant that each of his trips constituted a single transaction,
see Bell v. United States,
The Supreme Court has made clear that “ ‘[wjhere consecutive sentences are imposed at a single criminal trial, the role of the constitutional guarantee is limited to assuring that the court does not exceed its legislative authorization by imposing multiple punishments for the same offense.’ ”
Albernaz v. United States,
In ascertaining congressional intent, the court must look first to the language of the provisions at issue, to see whether Cort-gress explicitly addressed the question of separate punishment.
See, e.g., Albernaz,
In this case, neither § 2421 nor § 2423 expressly addresses the question whether á single transaction violating both provisions should be separately punished. We turn» then, to the legislative history for insight into the problem. In our view, to the extent that the legislative history of the two statute suggests anything, it is that Congress enacted § 2421 and § 2423 to combat two quite “separate evils.”
Woodward,
Application of the
Blockburger
rule to the provisions at issue here confirms that appellant was properly given separate punishments under each statute, since § 2421 and § 2423 each requires proof of a fact which the other does not: the requirement of § 2421 that the government prove that the persons transported were female does not appear in § 2423, while the requirement in § 2423 that the government prove that the persons transported were minors does not appear in § 2421.
See Parr,
Given that the application of the Block-burger rule to this case corroborates the indications in the legislative history that Congress enacted § 2421 and § 2423 to address two separate evils, we conclude that the trial court did not err in imposing on Anderson separate, consecutive sentences for single transactions that violated both § 2421 and § 2423.
IV. The Admission of Dr. Lee’s Testimony
Dr. Lois Lee, the government’s expert witness, testified on the modus operandi of pimps and on the nature of the relationship between pimps and prostitutes. Specifically, Dr. Lee testified that sophisticated pimps usually travel in an intercity circuit with a group of ten to forty girls working for them; the recruits are usually vulnerable young women, often runaways who have been abused or neglected by their families. See Tr. XIII at 173-76, 179-80. According to Dr. Lee, the typical pimp will encourage his prostitutes to compete for his affection by earning money, and will beat his prostitutes if they fail to adhere to his rules. See id. at 181-83; Tr. XIV at 6. Dr. Lee described the prostitute-pimp relationship as a love-hate relationship, and noted that prostitutes are often so financially and psychologically dependent on their pimps that they are unable to leave even when they are beaten. See Tr. XIII at 180-181; Tr. XIV at 4-7. Pimps, Dr. Lee testified, usually spend the money earned by their prostitutes on drugs, clothes, and jewelry, since the ability to support a “flashy” lifestyle is a source of status in their subculture. See Tr. XIV at 7-9. Dr. Lee also mentioned several ways in which the pimp-prostitute relationship ends — the prostitute becomes pregnant, goes on welfare, turns to more serious kinds of crime, commits suicide, or dies at the hands of a customer. See id. at 8-9. In answer to a question by defense counsel during cross-examination about her qualifications, Dr. Lee stated that she had previously testified as an expert in a case involving a pimp suspected of murdering his prostitutes. See Tr. XIII at 120.
A. Relevance
Appellant asks us to overturn the trial court’s determination that Dr. Lee’s testimony was relevant to the issues in this case. We decline to do so. Evidence is relevant under Federal Rules of Evidence 401 and 402 if it has “any tendency to make the existence of any fact that is of consequence to the determination of the action more probable or less probable.” Fed.R.Evid. 401. In the instant case, we do not agree with appellant’s assertion that Dr. Lee’s testimony “was of absolutely no probative value to the government in establishing the elements of the offense.” Appellant’s Brief at 33. In our view, Dr.
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Lee’s testimony on pimping patterns and the pimp-prostitute relationship might have shed light on critical issues in the case — for example, whether the appellant was in fact a pimp or rather, as Anderson claims, merely a gambler with a flashy lifestyle and a penchant for travel; and whether the government’s young witnesses travelled with him quite independently, or as part of a pimp-prostitute relationship. Moreover, Dr. Lee’s testimony could have helped the jury to determine the credibility of the government’s prostitute-witnesses, which counsel for appellant had sought to undermine on cross-examination by pointing up the inconsistencies in the witnesses’ testimonies,
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and by intimating that they would not have remained with Anderson if he had mistreated them as they claimed. Left un-rebutted, such cross-examination could have led the jury to speculate that the mistreatment alleged by the government’s witnesses did not actually occur; that the young women had travelled with Anderson quite voluntarily; and that they had not engaged in prostitution at his direction. Because Dr. Lee’s testimony had a significant bearing on facts “that could be determinative of [Anderson’s] guilt or innocence,” and because the trial judge has “wide discretion to admit or exclude evidence where the question is one of relevancy,”
United States v. Morgan,
B. Undue Prejudice
Appellant contends that even if Dr. Lee’s testimony were relevant, it should have been excluded under Rule 403 of the Federal Rules of Evidence because “its probative value [was] substantially outweighed by the danger of unfair prejudice.” Fed.R.Evid. 403. Anderson makes two specific claims of prejudice. First, he claims that Dr. Lee’s testimony that “flashy clothes, flashy expensive jewelry, and big expensive cars” are “the tools of the pimp’s trade,” when combined with previously admitted evidence that appellant owned such items, tended “to prove that the defendant is a person of bad character and thus predisposed to commit the crime for which he is on trial.” Appellant’s Brief at 30 (citing
United States v. Foskey,
Anderson’s claims of prejudice reflect legitimate concerns. Courts have frequently noted that there is often an inherent danger with expert testimony unduly biasing the jury “[b]ecause of its aura of special reliability and trust,”
United States v. Amaral,
CONCLUSION
For the reasons stated above, the decision of the district court is
Affirmed.
Notes
. Both § 2421 and § 2423 were amended by the Act of November 7, 1986, Pub.L. No. 99-628, § 5(b)(1), 100 Stat. 3511. All discussions of § 2421 and § 2423 in this opinion refer to the unamended versions of those sections that were in force at the time of Anderson’s indictment.
. Prior to trial, the government elected not to proceed on five of the violations of 18 U.S.C. § 2421 and two of the violations of 18 U.S.C. § 2423. After the government presented its case-in-chief, appellant’s motion for a judgment of acquittal was granted as to one other violation of 18 U.S.C. § 2423. A renumbered indictment was prepared, and the case was submitted to the jury on twenty-one counts. See Appellee’s Brief at 2 n. 1.
. Rule 41 defines “daytime” as 6:00 a.m. to 10:00 p.m. local time. Fed.R.Crim.P. 41(h).
. See, e.g., Tr. XV at 30-36, 53-54 (testimony of Tina Smart denying the truth of her earlier grand jury testimony to the effect that appellant had made her a prostitute); id. at 88-92 (testimony of Shelley Speller disclaiming her earlier statements before the grand jury and asserting that she had been pressured by the government to testify falsely against Anderson).
