Murder (Abolition of Death Penalty) Act 1965 all sentences of death were to be commuted to sentences of life imprisonment. The legislation contained a sunset clause, which stated that the Act would expire on 31 July 1970 "unless Parliament by affirmative resolutions of both Houses otherwise determines". This was done in 1969 and the Act was made permanent. The Act left four capital offences: high treason, "piracy with violence" (piracy with intent to kill or cause grievous bodily harm), arson in royal dockyards and espionage, as well as other capital offences under military law. The death penalty was not finally abolished in the United Kingdom until 1998
Treason such attempt. Following the enactment of the 1937 constitution, the Treason Act 1939 provided for the imposition of the death penalty for treason. The Criminal Justice Act 1990 abolished the death penalty, setting the punishment for treason at life imprisonment, with parole in not less than forty years. No person has been charged under the Treason Act. Irish republican legitimatists who refuse to recognise the legitimacy of the Republic of Ireland have been charged with lesser crimes under the Offences against the State Acts 1939–1998. The Italian law defines various types of crimes that could be generally described as treason