Belarus
Constitution of the Republic of Belarus of 1994
Section 2. The Individual, Society and the State
Article 25.
No one shall be subjected to torture or cruel, inhuman or undignified treatment or punishment, or be subjected to medical or other experiments without one's consent.
Keywords
Rights during investigation - not to be subjected to any form of coercion, duress or threat, to torture or to any other form of cruel, inhuman or degrading treatment or punishment
EDIT.