It turns out that both HRW and the OPCW relied on the purported 'NGO' called the White Helmets to provide samples, descriptions, photographs as well as witnesses to the event. Neither agency had their own investigative teams on the ground where the supposed attack actually occurred. Wholly depending on parties that have an invested interest in convicting the Syrian government goes against all norms of jurisprudence.

It is in this light that Scott Ritter looks at the claims being made of the purported Sarin bombing at Khan Sheikhun. What we discover is that the OPCW report rests almost entirely on evidence and testimony given by the White Helmets.