Ark. Code Ann. § 20-64-104

A search warrant relating to offenses involving drugs regulated under the Uniform Narcotic Drug Act, § 20-64-201 et seq., and the Arkansas Drug Abuse Control Act, § 20-64-301 et seq., may be served at any time of the day or night if the judge of the district or circuit court issuing the warrant is satisfied that there is probable cause to believe that grounds exist for the warrant and for its service at that time.