He re-stated his belief that no chemical attack occurred & called the final OPCW report a "complete turnaround in the situation from what was understood by the majority of the team and the entire Douma team."
"In my case, I had followed up with a further six months of engineering and ballistic studies of these cylinders, the result of which had provided further support for the view that *there had not been a chemical attack.*"
He revealed that he was also inspection team leader at Syria's Barzei laboratories before & after it was bombed by US.
He was not just a member of the Douma investigative team, he played a lead role in other highly intrusive OPCW inspections in Syria.