The provisions of this title apply to all criminal actions and proceedings in all courts except where specific provision is otherwise made or where the Rules of Criminal Procedure adopted by the supreme court under its constitutional authority apply. This title governs all proceedings in actions brought after January 1, 1963, and all further proceedings in actions then pending, except to the extent that, in the opinion of the court, their application in a particular action pending when the rules take effect would not be feasible, or would work injustice, in which event, the laws in effect before January 1, 1963, apply.