In August 2013, CBP issued a news release covering a four-day stretch at the Port of Nogales, Arizona. Six people had been arrested across several unrelated stops. Officers had seized methamphetamine, heroin, and cash with a combined reported value approaching $1.5 million. Buried in the middle of that release was a single paragraph: on a Friday afternoon at the DeConcini crossing, a 34-year-old local man was taken into custody for attempting to carry $96,880 in unreported U.S. currency into Mexico, hidden in the engine compartment of his Ford pickup.
No narcotics were reported in his vehicle. His stop had nothing to do with the drug cases. But his money was announced alongside them, and that framing is not a press-release quirk. It reflects how a large share of CBP currency seizures are investigated, described, and ultimately defended.
The Association Problem
Southwest border currency seizures are frequently made by officers whose primary assignment is narcotics interdiction, then reported in aggregate with narcotics results. For a claimant, this creates a problem that has nothing to do with the facts of their own case: the file arrives at the Fines, Penalties and Forfeitures office already carrying an implication.
That implication matters because the government can pursue seized currency on more than one theory, and the theories are not interchangeable.
- A reporting theory. The money was over $10,000, it was crossing the border, and no FinCEN Form 105 was filed. Nothing about the money’s origin needs to be proven.
- A smuggling theory. The money was concealed with the intent to evade that reporting requirement, under 31 U.S.C. § 5332.
- A proceeds theory. The money is traceable to, or was used to facilitate, a specified unlawful activity such as drug trafficking.
Make the government pick a theory
Under the Civil Asset Forfeiture Reform Act, the government generally bears the burden of proving forfeitability by a preponderance of the evidence, and where the claim is that property facilitated an offense, it must establish a substantial connection between the property and that offense. Proximity to an unrelated enforcement operation is not that connection. A well-built response does not let a proceeds implication ride along on a reporting case unchallenged.
Canine Alerts and the Contamination Problem
Cash seized in this posture is often accompanied by a canine alert, and that alert then appears in the record as evidence the money was drug-related. It is one of the most contested pieces of evidence in currency forfeiture litigation, for a reason worth understanding.
Research over several decades has found that a substantial portion of U.S. currency in ordinary circulation carries detectable narcotics residue, picked up through counting machines, bank handling, and general circulation rather than through any connection to trafficking. Federal courts have taken different views of what this means. Some have given canine alerts on bulk currency little weight precisely because contamination is so widespread. Others have credited alerts where the detection dog was trained on compounds that dissipate quickly, reasoning that such an alert indicates recent rather than ambient exposure.
The practical takeaway is not that a canine alert can be waved away. It is that an alert, standing alone, is contestable, and that whether it carries weight depends on details about the dog’s training and the circumstances of the alert that are not in the seizure paperwork and have to be asked for.
Concealment Still Cuts Against the Claimant
None of the above changes the hardest fact in this case. Money in an engine compartment is not money that was simply forgotten.
Bulk cash smuggling under 31 U.S.C. § 5332 requires proof that concealment was undertaken with intent to evade the reporting requirement, and the physical location of the money is the government’s usual proof of that intent. There is a meaningful difference between currency in a jacket in a suitcase and currency wrapped and placed in an engine bay, and CBP’s mitigation guidelines treat concealment as an aggravating factor that reduces the relief available. Our page on bulk cash smuggling and CBP currency seizures covers how these cases are charged and defended.
A modified compartment is a separate fact
Officers and prosecutors distinguish between currency tucked into an existing void in a vehicle and currency placed in a compartment that was built or altered to hide things. An aftermarket trap compartment is treated as evidence of planning, can support additional charges in some jurisdictions, and makes recovery of the vehicle substantially harder.
What It Signals When CBP Publishes a Name
CBP does not identify individuals in most currency seizure announcements. When a name appears, it generally means the matter went beyond an administrative seizure into a criminal referral, either to Homeland Security Investigations or to a state or county prosecutor.
That distinction changes how the money should be handled. In a purely administrative case, the path forward is a written submission documenting the legitimate source and legitimate intended use of the funds. Where a criminal referral exists, every sentence in that submission is also a statement in a case where the standard of proof, the decision-maker, and the consequences are all different. The civil and criminal tracks proceed independently, so a declined charge or an acquittal does not return the money on its own.
Separating Your Facts From the Surrounding Narrative
For anyone whose cash was taken in this kind of operation, the work is largely evidentiary. The goal is to make the file about the claimant’s own transaction rather than about the port’s enforcement week.
- Documentary proof of where the money came from: bank withdrawals, a business sale, a settlement, a loan, an inheritance, tax filings.
- Documentary proof of what it was for: a purchase agreement, an invoice, a construction contract, medical or property records abroad.
- Records establishing that the amount and the timing are consistent with the claimant’s ordinary financial life.
- An explanation of the concealment that is truthful and consistent with everything already in the record, including whatever was said at the border.
A narrative without documents is a potentially difficult position. Outcomes in these matters depend heavily on the specific facts, the quality of the supporting evidence, and the aggravating or mitigating circumstances present in the individual case. The mechanics of the written submission are covered on our page about the petition for remission or mitigation of seized cash, and the underlying filing obligation is explained on our page about the CBP cash reporting requirement and FinCEN Form 105.
Seizures at Nogales, Douglas, San Luis, and the other Arizona crossings are administered through the Fines, Penalties and Forfeitures office for that field office, and a Notice of Seizure ordinarily allows 30 days to respond. Further detail is available on our page covering cash seized at Arizona ports of entry.
Cash Seized at an Arizona Port of Entry?
Great Lakes Customs Law handles currency seizures at ports nationwide, including cases where seized money has been associated with an unrelated enforcement operation. Contact us for a confidential case evaluation.
Frequently Asked Questions
CBP announced my seizure alongside drug cases. Does that affect my claim?
It does not change the legal standard, but it can shape how the file is perceived. Where the government asserts the money is criminal proceeds, it generally has to show a substantial connection to a specific offense. Proximity to an unrelated operation is not that showing.
A dog alerted on my money. Is that proof it came from drugs?
Not by itself. Narcotics residue is common on currency in ordinary circulation, and federal courts have reached differing conclusions about how much weight a canine alert on bulk cash deserves. The details of the dog’s training and the alert are relevant and can be examined.
Why did CBP release the traveler’s name in this case?
Names typically appear when there has been a criminal referral rather than a purely administrative seizure. It generally signals that a prosecutor or Homeland Security Investigations is involved, which changes how the civil side should be handled.
Does hiding the money automatically mean I lose it?
No, but concealment is an aggravating factor that reduces available relief and supports a bulk cash smuggling allegation. Cases involving concealment start from a harder position and depend heavily on the documentation and the individual circumstances.
Legal Disclaimer: This article is provided for general informational purposes only and does not constitute legal advice. Reading it, or contacting Great Lakes Customs Law through this website, does not create an attorney-client relationship. Laws, regulations, court decisions, and CBP procedures change, and the outcome of any customs seizure or forfeiture matter depends heavily on its specific facts and circumstances. No result is guaranteed or implied. References to a publicly reported arrest are descriptive only; an arrest raises no inference of guilt. You should consult a licensed attorney about your particular situation before taking or refraining from any action.