The Douma chemical weapons investigation and the role of Ian Henderson

Many of the recent claims about “irregularities” in the OPCW’s investigation of a suspected chemical attack in Syria revolve around an employee called Ian Henderson. His exact role has been a matter of dispute but now leaked documents give a clearer picture.

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In a report last March the OPCW’s Fact-Finding Mission (FFM) found “reasonable grounds” for believing a toxic chemical had been used as a weapon in the Syrian city of Douma.