Absolute privilege describes a complete defence to defamation (libel and slander), whereby certain statements cannot give rise to liability, even if they are false and made maliciously. It protects the occasion on which the words are spoken or published, not their truth or the speaker’s motive.In England and Wales, Scotland and Northern Ireland, absolute privilege arises mainly in: (i) parliamentary proceedings and papers; (ii) statements made in the course of judicial and quasi‑judicial proceedings (including by judges, advocates, parties and witnesses); and (iii) certain communications between lawyers and clients in the conduct of litigation. The core principles are derived from case law, supplemented by statute such as the Parliamentary Papers Act 1840 and defamation legislation.In Ireland, the categories are broadly similar, with absolute privilege recognised in parliamentary, judicial and certain other official contexts, reflected in the Defamation Act 2009 and case law.The privilege is “absolute” in that it is not defeated by proof of malice. It is narrowly construed and distinguished from qualified privilege, which protects only statements made without malice and on an occasion of legal, moral or social duty or interest.