PART I
Fundamental rights and duties
CHAPTER TWO
Rights and Liberties
SECTION 1
Fundamental Rights and Public Liberties
Article 17 - Right to personal freedom
3. Any person arrested must be informed immediately, and in a manner understandable to him or her, of his or her rights and of the grounds for his or her arrest, and may not be compelled to make a sta¬tement. The arrested person shall be guaranteed the assistance of a law¬yer during police and judicial proceedings, under the terms established by the law.
Rights during investigation - self incrimination
Rights during investigation - access to interpreter and translation if questioned in other language
Rights during investigation - informed of belief that crime has been committed
Rights during investigation - remain silent
Rights during investigation - legal assistance
EDIT.