(1) The trial of any prosecution commenced prior to the effective date of this chapter, and proceedings incidental thereto, shall be governed by this chapter unless the defendant elects to be proceeded against under the law in force at the time the prosecution was commenced. Such election shall be made by the defendant in open court or in writing at or prior to the time of commencement of trial.
(2) Appeals commenced prior to the effective date of this chapter shall be governed by the provisions of this chapter from and after its effective date.