CHAPTER 2. LEGAL STATUS AND RIGHTS OF ARRESTEES AND DETAINEES, AND GUARANTEES OF PROTECTION OF THESE RIGHTS
Article 13. Rights of Arrestees and Detainees
3) to complain about violations of his/her rights and freedoms, both personally and through his/her attorney or legal representative to the administration of the places of arrest or detention, to their superiors, to the court, to the prosecutor’s office, to central and local government bodies, public organizations and parties, the media, as well as to international bodies or organizations involved in protection of human rights and freedoms;
Rights during investigation - legal assistance
EDIT.