CHAPTER V
BASIC RIGHTS, INDIVIDUAL RIGHTS AND FREEDOMS
Article 16
1. Everyone has the right to personal liberty and safety.
2. No one will be deprived of his freedom, other than on grounds and according to proceedings determined by law.
3. Everyone who is deprived of his freedom has a right to a treatment in accordance with human dignity.
Rights during investigation - arbitrary arrest or detention and deprivation of liberty
EDIT.