THE RECOGNITION AND PROTECTION OF FUNDAMENTAL HUMAN RIGHTS AND FREEDOMS
PART I
RIGHTS ENSHRINED
5. Protection of rights and freedoms
(2) (g) deprive a person of the right to the assistance of an interpreter in any proceedings in which he is involved or in which he is a party or a witness, before a Court, commission, board or other tribunal, if he does not understand or speak English; or
Rights during investigation - access to interpreter and translation if questioned in other language
Rights during trial - interpretation and translation
EDIT.