Chapter II
THE FREEDOMS, RIGHTS AND OBLIGATIONS OF PERSONS AND CITIZENS
PERSONAL FREEDOMS AND RIGHTS
Article 42
1.Only a person who has committed an act prohibited by a statute in force at the moment of commission thereof, and which is subject to a penalty, shall be held criminally responsible. This principle shall not prevent punishment of any act which, at the moment of its commission, constituted an offence within the meaning of international law.
2. Anyone against whom criminal proceedings have been brought shall have the right to defence at all stages of such proceedings. He may, in particular, choose counsel or avail himself - in accordance with principles specified by statute - of counsel appointed by the court.
3. Everyone shall be presumed innocent of a charge until his guilt is determined by the final judgment of a court.
EDIT.