Criminal Procedure (Insanity) Act 1964
An Act to amend the form of the special verdict required by section 2 of the Trial of Lunatics Act 1883 and the procedure for determining whether an accused person is under a disability such as to constitute a bar to his being tried; to provide for an appeal against such a special verdict or a finding that the accused is under such a disability; to confer on the court of trial and the Court of Criminal Appeal further powers of making orders for admission to hospital; to empower the prosecution to put forward evidence of insanity or diminished responsibility; and for purposes connected with the matters aforesaid.