(1) An application under section 401 of the Code for a certificate may be made orally by the appellant or his or her counsel either at the trial or subsequently.(2) If the judge of the court of trial refuses an application under section 401 of the Code, the appellant may make application to the Court of Criminal Appeal.(3) An application under section 418 of the Code is to be made in the first instance to a judge and, if the judge refuses the application, the Registrar is to notify the appellant of the refusal.(4) For the purposes of this rule, a judge may sit and act wherever convenient.