The World Health Organization reports that in many instances national mental health legislation takes away the rights of persons with mental disorders rather than protecting rights, and is often outdated. In 1991, the United Nations adopted the "Principles for the Protection of Persons with Mental Illness and the Improvement of Mental Health Care", which established minimum human rights standards of practice in the mental health field. In 2006, the UN formally agreed the "Convention on the Rights of Persons with Disabilities" to protect and enhance the rights and opportunities of disabled people, including those with psychosocial disabilities.