An Act to continue the Army Act 1955, the Air Force Act 1955 and the Naval Discipline Act 1957; to amend those Acts and other enactments relating to the armed forces; to authorise the establishment of courts for the trial outside the United Kingdom of civilians subject to Part II of the Army Act 1955 or Part II of the Air Force Act 1955; to make provision for the powers of the courts so authorised in relation to such civilians; to make further provision for the powers of courts-martial in relation to such civilians and to civilians subject to Parts I and II of the Naval Discipline Act 1957; to make further provision as to the disqualification of members of the forces for membership of the House of Commons or the Northern Ireland Assembly; to make further provision for Greenwich Hospital; and for connected purposes.