46 U.S.C. § 5114: Use of Customs Service officers and employees for enforcement

(a) With the approval of the Secretary of the Treasury, the Secretary may use an officer or employee of the United States Customs Service to enforce this chapter and the regulations prescribed under this chapter. (b) The Secretary shall consult with the Secretary of the Treasury before prescribing a regulation that affects the enforcement responsibilities of an officer or employee of the Customs Service.