CHAPTER FOUR—PROTECTION AND PROMOTION OF FUNDAMENTAL AND OTHER HUMAN RIGHTS AND FREEDOMS.
General.
28. Right to a fair hearing.
(9) A person who shows that he or she has been tried by a competent court for a criminal offence and convicted or acquitted of that offence shall not again be tried for the offence or for any other criminal offence of which he or she could have been convicted at the trial for that offence, except upon the order of a superior court in the course of appeal or review proceedings relating to the conviction or acquittal.
EDIT.