21 U.S.C. § 879 : US Code - Section 879: Search warrants

Search 21 U.S.C. § 879 : US Code - Section 879: Search warrants

A search warrant relating to offenses involving controlled
substances may be served at any time of the day or night if the
judge or United States magistrate judge issuing the warrant is
satisfied that there is probable cause to believe that grounds
exist for the warrant and for its service at such time.