A senior technical representative from one of the main manufacturers and suppliers of wall ties, head restraints and related cavity wall accessories
• Ancon Building Products, a major supplier of steel fixings to the construction industry provided their Technical Services Manager with responsibility for Scotland, the North of England, Wales and Northern Ireland to attend as a witness
• The architect who had contributed to a BBC documentary based on the collapse of the Oxgangs School wall attended to give his views on the issues in question
• A Chartered Surveyor who had had significant involvement in the management of the delivery of PPP projects in Scotland offered his services as a witness to the Inquiry and subsequently attended
Representatives from other Local Authorities in Scotland that had experienced problems of a similar nature to that in the case of the Edinburgh schools
• The Head of Property Services from Local Authority attended as a witness
• A senior estates officer from another Local Authority attended as a witness
• Submissions were received from the large majority of Local Authorities setting out the findings of surveys they had undertaken of their school estates following the incident in Edinburgh. A number of Local Authorities were unwilling to share with the Inquiry the structural reports relating to defective construction in their schools.
Verbal or written submissions were also invited from several professional bodies associated with the construction industry in relation to their views of any current arrangements within the industry that may contribute to the type of defects that had been identified in the PPP1 Edinburgh Schools.
Written submissions were received from the Royal Incorporation of Architects in Scotland, from the Institution of Structural Engineers, and from the Institute of Clerks of Works
In total some 66 witnesses gave evidence to the Inquiry, with each interview being allocated approximately 90 minutes.