‘There is a striking difference between CPR part 16.4, which deals with the Particulars of Claim and 16.5, which deals with the defence. Whereas there is a clear instruction that the Particulars of Claim has to include only a concise statement of the facts on which the Claimant replies, there is no corresponding provision so far as the Defence is concerned.’
Zenith PI Blog, 20th May 2015
Source: www.zenithpi.wordpress.com