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DOVER AIR FORCE BASE, Del. -- Tech. Sgt. Noel Vadell with the 512th Component Maintenance Squadron, an Air Force Reserve Command unit, is a Drug Enforcement Agency forensic chemist who responded to a suspected drug lab site area last year, where drums with hazardous markings were found. He's using an instrument to detect whether or not the drums contained chemical solvents. Sergeant Vadell is a jet engine mechanic in the Air Force Reserve. (U.S. Air Force photo)