Involuntary treatment (also referred to by proponents as assisted treatment and by critics as forced drugging) refers to medical treatment undertaken without the consent of whomever is treated. In almost all circumstances, involuntary treatment refers to psychiatric treatment administered despite an individual's objections. These are typically individuals who have been diagnosed with a mental disorder and are deemed by a court to be a danger to themselves or others.
In 1975, the U.S. Supreme Court ruled in O'Connor v. Donaldson that involuntary hospitalization and/or treatment violates an individual's civil rights. The individual must be exhibiting behavior that is a danger to themselves or others and a court order must be received for more than a short (E.g. 72-hour) detention. The treatment must take place in the least restrictive setting possible. This ruling has severely limited involuntary treatment and hospitalization in the United States. The statutes vary somewhat from state to state.
In 1979, the United States Court of Appeals for the First Circuit established in Rogers v. Okin that a competent patient committed to a psychiatric hospital has the right to refuse treatment in non-emergency situations. The case of Rennie v. Klein established that an involuntarily committed individual has a constitutional right to refuse psychotropic medication without a court order. Rogers v. Okin established the patient's right to make treatment decisions.
Additional U.S. Supreme Court decisions have added more restraints to involuntary commitment and treatment. Foucha v. Louisiana established the unconstitutionality of the continued commitment of an insanity acquittee who was not suffering from a mental illness. In Jackson v. Indiana the court ruled that a person adjudicated incompetent could not be indefinitely committed. In Perry v. Louisiana the court struck down the forcible medication of a prisoner for the purposes of rendering him competent to be executed. In Riggins v. Nevada the court ruled that a defendant had the right to refuse psychiatric medication while he was on trial, given to mitigate his psychiatric symptoms. Sell v. United States imposed stringent limits on the right of a lower court to order the forcible administration of antipsychotic medication to a criminal defendant who had been determined to be incompetent to stand trial for the sole purpose of making them competent and able to be tried. In Washington v. Harper the Supreme Court upheld the involuntary medication of correctional facility inmates only under certain conditions as determined by established policy and procedures.