Defamation act 1952 legislationgovuk defamation act 1952 1952 chapter 66 15 and 16 geo 6 and 1 eliz 2 an act to amend the law relating to libel and slander and other malicious falsehoods 30th october 1952 defamation act 1952 c 66 the defamation act 1952 15 16 geo 6 1 eliz 2 c 66 is an act of the parliament of the united kingdom this act implemented recommendations contained in the report of the porter