Supreme Court Rules 2000

If a plaintiff intends to meet a defamation defence by –

alleging that the defendant was actuated by express malice in the publication of the matter complained of; or relying on any matter which, under the Defamation Act 2005, defeats the defence –

the particulars required by rule 263A(1) in relation to the reply must include particulars of the facts, matters and circumstances on which the plaintiff relies to establish that allegation or matter of defeasance.