Survey team chief Army Staff Sgt. Cory Sweetman uses a hand-held chemical identification analyzer to identify unknown liquid chemicals at a simulated crime scene at Naval Weapons Station Earle, Colts Neck, N.J., June 12, 2018. Sweetman is assigned to the 21st Weapons of Mass Destruction-Civil Support Team, New Jersey National Guard. New Jersey National Guard photo by Mark C. Olsen