405 ILCS 5/2-100

(a) No recipient of services shall be deprived of any rights, benefits, or privileges guaranteed by law, the Constitution of the State of Illinois, or the Constitution of the United States solely on account of the receipt of such services.

(b) A person with a known or suspected mental illness or developmental disability shall not be denied mental health or developmental services because of age, sex, race, religious belief, ethnic origin, marital status, physical or mental disability or criminal record unrelated to present dangerousness.