“1. Did Mr de Silva provide calculations, give advice and/or discuss the decision to instruct remedial works at levels B3 or B4 with Finchatton [the claimant’s project managers]? If so, please set out full details of these discussions. 2. Did Mr de Silva comment on the work being carried out by WSP in relation to the decision to instruct remedial works? If so, please provide full details of his involvement with checking WSP’s work and any discussions he had with either WSP or Finchatton. 3. Did Mr de Silva have any direct contact with WSP and/or Finchatton when the decision to instruct remedial works was being taken? If so, please set out full details of these discussions. 4. Were any calculations or other documents produced by Mr de Silva sent to, shown or otherwise discussed with WSP? If so, please (1) provide copies of any such documents; and (2) set out full details of these discussions. 5. Please provide full details of any other involvement Mr de Silva had in respect of the decision to instruct remedial works.”