Md. Code, Criminal Procedure § 12–212

A seizing authority or prosecuting authority may not directly or indirectly transfer seized property to a federal law enforcement authority or agency unless:

(1) a criminal case related to the seizure is prosecuted in the federal court system under federal law;

(2) the owner of the property consents to the forfeiture;

(3) the property is cash of at least $50,000; or

(4) the seizing authority transfers the property to a federal authority under a federal seizure warrant issued to take custody of assets originally seized under State law.