"6. The Defendants shall serve, on or before15 June 2012 , a product description which to the best of the Defendants' knowledge and belief is in accordance with paragraph 6.1(1) and 6.2 ofPractice Direction 63 - Intellectual Property Claims -- supplementingCPR Part 63 for representative products in issue. 7. In the event that the product description served pursuant to paragraph 6 above is not a complete description of the relevant parts of the products in issue, the Defendants shall, on or before15 June 2012 , make and serve on the Claimant a Disclosure List in accordance with form N265 of any documents in their control which relate to the matters in relation to which the product description is incomplete. 8. The description served under paragraph 6 shall be accompanied by a signed written statement which shall: (a) state that the person making the statement is personally acquainted with the facts to which the description relates; (b) verify that the description is a true and, which to the best of the Defendants' knowledge and belief is complete description of the product or process; and (c) contain an acknowledgment by the person making the statement that he may be required to attend court in order to be cross-examined on the contents of the description."