The basic policy to work on the rights of mentallly ill people and people with disabilities is the “Convention on the rights of persons with Disabilities (CRPD)”:
https://www.un.org/development/desa/disabilities/convention-on-the-rights-of-persons-with-disabilities.html
This UN resolution was passed in 2006 and went into effect in 2008, was ratified by 160 countries, and made the previous resolutions on human rights more concrete: they are seen less as ill, and more as equal. The convention affects approx. 650 million people and no other resolution was ratified so quickly (based on Wikipedia). It was ratified by Ivory Coast (2014). Other treaties that address human rights and disabilities are:
- International Covenant on Civil and Political Rights (ICCPR)
- International Covenant on Economic, Social and Cultural Rights (ICESCR)
- Convention Against Torture and other Cruel, Inhuman or Degrading Treatment or
Punishment (CAT) - Convention on the Elimination of All Forms of Discrimination Against Women (CEDAW)
- Convention on the Rights of the Child (CRC)
- African Charta on Human and Peoples’ Rights (1981)
- European Convention for the Protection of Human Rights and Fundamental Freedoms
- European Convention for the Prevention of Torture and Inhuman or Degrading Treatment or Punishment