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. Webwe examine the use of chemical weapons at ghouta in 2013 and on the hama plains in 2014 and find that: First, chemical weapons have demonstrated limited. Webon april 7, 2018, insurgents and civilians in a rebel enclave in douma, east of damascus, syria, were subjected to a chemical weapons attack during an offensive. Webthe un security council met behind closed doors on wednesday, to discuss the latest findings of the global chemical weapons watchdog in syria, which concluded.