“I wonder if any of our ops are helping the Iraqis to perform GSR testing on fleeing males from Fallujah?”
That is a good idea from a technical view, but I think that the few Americans around Fallujah want/are being kept away from the handling of the male detainees/refugees. Everyone expects war crimes to occur. I would not want put a subordinate at risk for getting caught up in that mess. Stay clear and file protests.
The Iraqi Army has the equipment to test for gun shot residue, and they have been the ones on the forward edge, capturing fresh prisoners. No idea if they use it.
The militiamen to the rear have been holding the perimeter, and screening refugees, would have to have been issued equipment (unlikely), and escaping jihadis would probably have cleaned up before running (some might still test positive though).
I would hope that they have some lists developed by the intel guys (Iraqi and Iranian, maybe more), to screen the refugees against. The standard treatment in Iraq for anyone who is detained, is to smack them around a bit - so I would expect that to be the typical screening process, here more than usual. Anybody who seems like a foreigner is in big trouble (quite a few Saudis there, I understand).
Forgot to mention K-9 bomb/explosives sniffing dogs. My son was a K9 police officer for a number of years, with a beautiful female Belgian Malinois (who died last year of brain cancer).
Also, there are explosives sniffing handheld kits for battlefield and crime-scene use.
Ah, modern technology. Ain’t it great? So is the old slap the boys around technique or the “Talk or I’ll kill you” method. Not found in modern military or police manuals but I’m old school. If you mess with a radical’s head, you can do a lot to make them talk, voluntarily.
And then, I’ve been told, that killing the guy next to the one you want to talk, is also effective. I’ve been reading too many tough guy books, I guess.