Did you say CSI or AFOSI?
Staff Sgt. Andrew McGee (left) and Airman 1st Class Justin Barajas, both with 71st Medical Group bioenvironmental engineering at Vance Air Force Base, Okla., mark evidence while walking a grid during an exercise April 15 on how to preserve and process a chemical or weapon-of-mass-destruction scene that may be a result of criminal activity. (U.S. Air Force photo/Capt. Tony Wickman)

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