Sergio Eduardo Oreira (Oreira) and Carlos Humberto Postizzi (Postizzi) appeal from their convictions on three counts of structuring in order to evade the reporting requirements and one count of conspiracy. We reverse and remand.
Background
Federal law requires financial institutions to file a currency transaction report (CTR) with the Secretary of the Treasury for cash transactions greater than $10,000. 31 U.S.C. § 5313; 31 C.F.R. § 103.22(a)(1). It is illegal to structure, assist in structuring, or attempt to structure any transaction for the purpose of evading the filing of a CTR. 31 U.S.C. § 5324(a)(3). A person “willfully violating” the antistructuring section is subject to criminal penalties. 31 U.S.C. § 5322.
Defendants Oreira and Postizzi worked for Continental Transfer Services d/b/a Servicios Continental (“Continental”) in Houston. 2 Continental was a “giro” house which wired money for its customers in the United States to individuals or companies in other countries. Oreira was an employee of Continental and Postizzi was its vice-president. From late 1989 to March 1991, Continental did business in Houston. Oreira and Postizzi would accept money from customers, allegedly manufacture customer records in amounts under $10,000, and wire the money to different locations outside the United States, mostly to Colombia.
One business associate of the Defendants was Patricia Gomez. Gomez was also a government informant. In the fall of 1990, Gomez met with the Defendants. On two of these occasions, Postizzi instructed Gomez how to prepare fictitious receipts while Or-eira was present. Based in part on the information she gathered from these meetings, IRS Agents executed a search warrant on Continental’s premises on March 22,1991. A few days later, the Secretary of the Treasury issued a geographic targeting order requiring Continental to file CTRs for any amount of money over $100 during the next six months.
In April 1991, Postizzi and Oreira assisted in changing Continental’s name to Exprotur and executed a new lease in a Fort Worth strip mall. In early June 1991, Oreira and Gamba opened new bank accounts in Fort Worth. The Fort Worth bank accounts were not subject to the geographical targeting order. From June 4 to June 21, 1991, Oreira, Gamba and Postizzi accepted money from customers, and on the same day, would deposit money in amounts greater than $100 but less than $10,000 into different bank accounts at various banks in Fort Worth. The money was wired to different locations outside the United States, again mostly to Colombia.
Oreira and Postizzi were convicted of three counts of structuring transactions with domestic financial institutions in order to evade the filing of CTRs under 31 U.S.C. §§ 5313, 5322 and 5324, and one count of conspiracy to commit those acts under 18 U.S.C. § 371. The Defendants were sentenced to imprison *188 ment for 70 months, plus three years of supervised release. ' Oreira and Postizzi challenge their conviction and sentence. 3
Analysis
Jury Instructions
The Defendants contend that the district court erred by refusing to submit Defendants’ requested definition of the term “willfully”. 31 U.S.C. §§ 5324, 5322. The proposed instruction read:
The word “willfully,” as that term has been used from time to time in these instructions, means that the act was committed voluntarily and purposely, with the specific intent to do something the law forbids; that is to say, with bad purpose either to disobey or disregard the law.
Instead, the relevant portion of the jury charge read:
It is not necessary for the Government to prove that a defendant knew that structuring or assisting in structuring a transaction to avoid triggering the filing requirements was itself illegal. The Government need only prove beyond a reasonable doubt that a defendant structured or assisted in structuring currency transactions with specific intent to avoid said reporting requirements. In other words, a defendant’s ignorance of the law prohibiting structuring is no defense if he knew about filing requirements and intentionally acted to evade or assisted in evading them.
Generally, failure to instruct the jury on an essential element of the offense is error.
United States v. Williams,
The Government contends that the error was harmless because the Defendants at trial did not argue or claim that the Government failed to show they knew their conduct was unlawful. This argument is disingenuous, since our existing precedent and the trial court’s ruling foreclosed any such argument. Moreover, as noted in
Ratzlaf,
“currency structuring is not inevitably nefarious.” — U.S. at-,
Two circuits have now held that failure to instruct on willfulness in a structuring case is plain error.
United States v. Jones,
21 F.3d
*189
165, 173 (7th Cir.1994);
United States v. Rogers,
Having determined that the case must be retried, it is appropriate to discuss other claims which are likely to arise in the new trial.
Evidentiary Rulings
The Defendants object to the testimony of IRS Special Agent Michael Balas, who testified as an expert on currency structuring. The Defendants contend that this testimony expressed an opinion on the essential element of their intent, which is solely a jury question under Fed.R.Evid. 704(b). They further argue that this testimony was “profile” testimony, which has been criticized by this and other circuits. The Government responds that the evidence is admissible under Rule 702 (Testimony by Experts) and 704(a) (Opinion on ultimate issue allowed), and should not be classified as profile evidence.
Balas described his experience with 60 different cases involving structuring or money laundering and his recent investigations of giro houses in the Houston area. He described the operation of illegal giro houses and how they structure transactions. Balas also presented a summary chart of all the wire transfers made by Continental between January 1990 and March 1991. Balas divided up the transferred funds into three categories based upon their destination, and observed that 95 percent of the wire transfers were to Colombia.
We agree with the Government that Balas’ testimony as to how giro houses in Houston operated was helpful to the jury’s understanding of the structuring charge. The giro house business is specialized and most citizens are unaware of how a giro house works. This expert testimony assisted the jury in understanding the mode of operation of the Defendants.
See, e.g., United States v. McCollum,
We are, however, concerned about this portion of Balas’ testimony:
MR. ROPER: Based on your training and experience, have you found that giro houses that are engaged in the circumvention of the CTR laws have a spread such as this with 95 percent going to Colombia and only 5 percent going to other countries? AGENT BALAS: That is correct.
MR. ROPER: Giros that are not attempting to circumvent the CTR laws, would they have the spread of 95.1 percent going to Colombia and 5 percent going to other countries?
AGENT BALAS: No, they wouldn’t.
Nothing in Balas’ testimony established a foundation for the proposition that because most customers of a giro house wire money to one country, the giro house is engaging in *190 illegal structuring. For example, there was no evidence as to the national origin of the customers of the giro house or of the geographic area in which it was located. Moreover, there is no apparent logical connection between the destination of the money and the structuring laws of this country. The government disclaims—and rightly so—any argument that the particular country in question, Colombia, can be the basis for an inference of illegality. On retrial, a specific objection to these questions should be sustained. 7
The Defendants also contend that the trial court violated Fed.R.Evid. 404(b) and 403 by admitting testimony of an expert witness that a narcotics-deteeting dog alerted on one deposit of cash made by the Defendants into one of Exprotur’s bank accounts. The dog’s handler was qualified as an expert and testified that the dog’s alert indicated there was a detectable amount of drugs on the money. The Government contends that the evidence shows the Defendants knew the money was drug money and thus had a motive to avoid the CTR requirements.
This circuit has established a two-part test for determining whether acts not alleged in the indictment are admissible under 404(b).
United States v. Beechum,
The contested evidence should have been excluded. The dog’s alert to the presence of narcotics on the money does little to prove the Defendants knew that the money was connected to drugs. At best, it indicates that the money, somewhere in its chain of custody, was in contact with narcotics. Contrary to the Government’s assertion, United States v. Hernando Ospina 8 acknowledges this crucial distinction. There, the court condoned evidence of a dog alert on the Defendant’s money to show that “the laundered money was drug proceeds,” an element of the statute involved in that case, 18 U.S.C. § 1952(a)(1). Id. at 1583. In the instant ease, the money being drug proceeds was not an element of the offense, and the dog alert was not used for that purpose. Instead it was used to show that the Defendants knew the money was drug proceeds. As such, its probative value was minimal and was substantially outweighed by the prejudicial impact of injecting the specter of narcotics trafficking into the case.
Oreira next challenges the admission of evidence relating to Continental’s transactions in Houston. This evidence described Continental’s alleged money structuring pri- or to its move to Fort Worth. Oreira contends that it was character evidence. We disagree. Oreira was charged in part with conspiracy to structure transactions. The time period alleged in the indictment encompassed the Houston activity, although the overt acts described only the activity occurring in Fort Worth. The Government introduced evidence of the Houston activities to show Defendants’ motivation for the peremptory move to Fort Worth and the subsequent change in their methods of structuring.
Oreira further contends that this evidence was unfairly prejudicial and that he was more prejudiced by its admission than his co-defendants, who directly ordered Continental’s illegal transactions in Houston. Oreira claims that while in Houston, he was just a six-month employee of Continental and had no knowledge of his superiors’ illegal activity. Although the admission of this evidence may have prejudiced Oreira, its probative value was not substantially outweighed by unfair prejudice. The evidence was highly probative because it showed that the Defendants had an interest in continuing their business in Fort Worth once the IRS had issued a *191 targeting order in Houston. It also demonstrated a connection between the Defendants’ business practices in Houston and Fort Worth. The fact that Oreira was arguably less involved in the Houston activities than Postizzi or others does not render the evidence inadmissible as to him.
Written Jury Instructions
Oreira argues that because the case was extremely complicated, the trial judge should have provided the jury with a written copy of the instructions in addition to the oral instructions. The weight of our precedent has, in fact, disapproved of the practice of providing written copies of the instructions to the jury in certain circumstances.
United States v. Perez,
Conclusion
The CONVICTIONS on all four counts against Oreira and Postizzi are REVERSED, their sentences are VACATED, and the case is REMANDED for a new trial.
Notes
. Two other members of Continental were indicted with Oreira and Postizzi. Jorge Somoza, the President of the company, was convicted with Oreira and Postizzi but is not a party to this appeal. Lilliana Gamba, an employee of the company, pleaded guilty to a reduced offense during the trial.
. The Defendants challenge the enhancement of their sentences under U.S.S.G. lB1.3(a)(l)(B), U.S.S.G. 2S1.1(b)(2), and U.S.S.G. 2S1.3(b)(l). In view of the remand for a new trial, we do not reach this question.
.
United States v. Beaumont,
.Although there was not overwhelming evidence that the Defendants knowingly violated the law, there nevertheless was sufficient evidence to support a finding of guilt had the jury been properly charged. Accordingly a remand for new trial does not pose a double jeopardy problem.
. We recognize the apparent inconsistency in some of our opinions concerning the proper standard of appellate review in instances where the trial court fails to instruct the jury on all elements of a crime. For example, in
United States v. Ojebode,
. We do not reach the difficult issue of line-drawing between Federal Rule of Evidence 704(a) and (b). Nor do we express an opinion as to whether Balas’ testimony constituted profile evidence.
.
