Postponement of process: magistrates may defer issuing process and order inquiry or investigation to test sufficiency. A Magistrate may postpone issuing process and either inquire personally or direct an investigation to determine if there is sufficient ground to proceed, mandatory when the accused resides beyond the Magistrate's jurisdiction. Investigation directions are precluded if the offence is triable exclusively by the Court of Session or if the complaint is non court made and the complainant and present witnesses have not been examined on oath. The Magistrate may take witness evidence on oath and must summon and examine all complainant witnesses where session trial exclusivity appears. Non police investigators receive police station powers except arrest without warrant.