Websyrian government officials say that no chemical attack occurred and that opposition members are fabricating their accounts. On monday afternoon, i spoke with. He had been part of the team that investigated the. Webamnesty's sam dubberley explores how open source evidence played a central role in the response by the us, uk and france to a suspected chemical. Weba new report released by the organization for the prohibition of chemical weapons (opcw) finds “reasonable grounds” exist to believe the syrian government.