the prison was refurbished and established by the Reconstruction era legislature as the Florida State Hospital for the Insane, the state's first mental institution. It was an effort by the legislature to establish some public welfare institutions to assist residents in the state. Over time, the hospital was investigated for allegations of mistreatment of patients, especially as treatment standards changed. The hospital was sued in O'Connor v. Donaldson (1975), a case that reached the United States Supreme Court. Kenneth Donaldson, a patient held there, sued the hospital and staff for confining him for fifteen years against his will. The court ruled that he had been illegally held. The decision, as interpreted by the American Civil Liberties Union (ACLU), means that it is unconstitutional to commit for treatment persons who are not imminently a danger to themselves or others and who are capable to a minimal degree of surviving on their own. This interpretation has hampered efforts to implement changes in commitment laws throughout the United States, as most states insist the person meet the "imminent danger" standard, accepting the ACLU's interpretation of the O'Connor v. Donaldson case. The ruling contributed to the deinstitutionalization movement in the United States, resulting in the shutting down of many large, public psychiatric hospitals. Current population The hospital treats individuals with severe and persistent major mental illnesses. Two categories of patients are treated at the hospital; those civilly committed under Statute 394, who represent a small portion of the hospital's residents; and those forensically committed under Statute 916. The Civil portion of the hospital houses adult and elderly individuals who have been civilly committed to the hospital, and forensic residents who have been "stepped down" to the civil unit. The civil units are also known as Forensic Transition units. Florida State Hospital also maintains a forensic wing for the Florida Department of Corrections to care for inmates who have been adjudicated through the criminal justice system to be incompetent to proceed to trial, or not guilty by reason of insanity. The current maximum housing capacity is 491 residents in civil units and 646 residents in forensic units. The goal of the hospital's efforts is recovery. The hospital works to restore competency to residents adjudicated incompetent to proceed to trial. Residents receive competency training in both forensic and civil units. The amount of time needed to restore competency varies from a month or two, to up