International Covenant on Civil and Political Rights Article 7
4CMINEWSWIRE
No one shall be subjected to torture or to cruel, inhuman or degrading treatment or punishment. In particular, no one shall be subjected without his free consent to medical or scientific experimentation.
https://www.ohchr.org/en/professionalinterest/pages/ccpr.aspx
Adopted and opened for signature, ratification and accession by General Assembly resolution 2200A (XXI) of 16 December 1966
entry into force 23 March 1976, in accordance with Article 49