On 22 February this year, the Organisation for the Prohibition of Chemical Weapons (OPCW) issued an opinion from the Investigation and Identification Team (IIT) that found ISIL* responsible for the use of chemical weapons (CW) in the Syrian town of Mari in September 2015.
Despite the fact that it took the OPCW more than 8 years to state a known fact, the conclusion uses cautious language such as “there is reason to believe” that “only ISIL* could have had the intent, motive and capability” to use CW at this location.