PART III. – BASIC PRINCIPLES OF GOVERNMENT.
Division 3. – Basic Rights.
Subdivision C. – Qualified Rights.
42. LIBERTY OF THE PERSON.
(2) A person who is arrested or detained–
(a) shall be informed promptly, in a language that he understands, of the reasons for his arrest or detention and of any charge against him ;
Language
Rights during investigation - access to interpreter and translation if questioned in other language
Rights during investigation - informed of belief that crime has been committed
EDIT.