The Treason Act 1945 (8 & 9 Geo.6 c.44) was an Act of the Parliament of the United Kingdom. It was introduced into the House of Lords as a purely procedural statute, whose sole purpose was to abolish the old and highly technical procedure in cases of treason, and assimilate it to the procedure on trials for murder: Its provisions are absolutely confined to matters of procedure, and it does not make any change whatsoever in the law as to what constitutes treason. It also abolished the rule that treason trials in Scotland had to be conducted according to the rules of English criminal law.