(1) except as provided in 136.583 (Seizure or production of papers, documents or records from recipient), a search warrant may be executed only within the period and at the times authorised by the warrant and only by a police officer. A police officer charged with its execution may be accompanied by such other persons as may be reasonably necessary for the successful execution of the warrant with all practicable safety

(2) the executing officer will, before entering the premises, give appropriate notice of the identity, authority & purpose of the officer to the person to be searched, or to the person in apparent control of the premises to be searched, as the case may be

(3) except as provided in 133.619 (Execution of warrant authorizing mobile tracking device), before undertaking any search or seizure pursuant to the warrant, the executing officer will read and give a copy of the warrant to the person to be searched, or to the person in apparent control of the premises to be searched. If the premises are unoccupied or there is no one in apparent control, the officer will leave a copy of the warrant suitably affixed to the premises