Where prior to F1or after the presentation of a complaint it is necessary to apply to a court for any warrant or order of court as incidental to . . . F2 proceedings by complaint, or where a court has power to grant any warrant or order of court, although no subsequent proceedings by complaint may follow thereon, such application may be by petition at the instance of a prosecutor in the form set out in F3. . . an Act of Adjournal under this Act or as nearly as may be in such form and, where necessary for the execution of any such warrant or order of court, warrant to break open F4shut and lockfast places shall be implied.