'strong, concrete suspicions'
https://portside.org/2017-12-18/strong-concrete-suspicions
Portside Date:
Author: Carla Del Ponte
Date of source:
New York Times
'Our investigators have been in neighboring countries interviewing victims, doctors and field hospitals. According to their report of last week, which I have seen, there are strong, concrete suspicions but not yet incontrovertible proof of the use of sarin gas, from the way the victims were treated.'
'... This was use on the part of the opposition, the rebels, not by the government authorities.'
Carla Del Ponte, a member of the
United Nations independent
commission of inquiry on Syria