Edited - 1080 /25P - h264 Size: 258 MB Free for use with mention: "Media and Public Affairs Branch, Organisation for the Prohibition of Chemical Weapons" Scott Cairns, UN Deputy Head of Mission, OPCW Team Leader, explains the chain of custody when retrieving samples collected at the site of alleged use in Syria, including recording, documenting and tamper proof seals, from receipt to deposition in designated laboratories. He talks about the integrity of the team to go in and retrieve true facts which are able to stand up to scrutiny in larger arenas. He also explains the expected threat of coming under fire and the consequent delay in entering the alleged site, including the extended ceasefire which allowed the inspectors to go in and do a proper job. He talks about the extreme scrutiny regarding social media and the Internet and the perseverance of the team to accomplish the mission with full integrity under criticism in real time.