They were Chemical Platoon and other members of the Iraqi military, however it was the Chemical platoons that conducted the training.
Please keep in mind that Iraq was not supposed to be treated like any other army when it comes to Chemical Warfare including his Chemical Platoon training. They were not supposed at all to have any Chemical Weapons agent even if it is a small quantity. We simply cannot compare our NBC platoon training to that of the Iraqi and assume that the Iraqi have the same right of training as our NBC units.
I honestly don't know if that's correct. I recall during the invasion that we captured some very small quantities of agents that were considered to be only for detection purposes, rather than offensive use. And nobody really considered that to be an issue. And in fairness, I don't think it should have been.
The legit purpose of the resolutions was to prevent them from using chemical weapons on the battlefield, not preventing them from protecting themselves against someone else's use. I don't think anyone here would have supported a war if the sole basis is that the Iraqis had kept tiny quantities of chems for use in detection kits and defensive training. I'm as pro-war as they come, and I don't think that would have justified anything.