U.S. Customs and Border Protection officers at the Dallas Fort Worth port of entry found $63,000 in counterfeit currency in separate shipments from Nigeria. One shipment contained soft cover books, that upon further inspection yielded currency taped to the pages of the books. The other shipment contained wigs and hair. Upon examination, CBP officers opened the package and found currency in $50 and $100 denominations.
The media release says the counterfeit currency was turned over to the Secret Service.
In general, currency seizures are handled by CBP. In general if your currency case is referred to Homeland Security Investigations (HSI), this means Customs likely believes your seized currency is related to something criminal. If your currency seizure case is referred to the United States Secret Service (USSS), it means your currency is suspected to be counterfeit.