PART II
FUNDAMENTAL RIGHTS, DUTIES, LIBERTIES AND GUARANTEES
TITLE II
PERSONAL RIGHTS, FREEDOMS AND GUARANTEES
Section 30 (Right to personal freedom, security and integrity)
3. Every individual who loses his or her freedom shall be immediately informed, in a clear and precise manner, of the reasons for his or her arrest or detention as well as of his or her rights, and allowed to contact a lawyer, directly or through a relative or a trusted person.
Rights during investigation - informed of belief that crime has been committed
Rights during investigation - legal assistance
EDIT.