Cpl. Juan Vargas, a military police officer with the Provost Marshal’s Office and a Los Angeles native, watches as Cpl. Kevin Roberson, a small arms technician with Headquarters and Headquarters Squadron and a Sacramento, Calif., native, performs a balance test during a sobriety test class aboard Marine Corps Air Station Miramar, Calif., July 10.  Roberson had volunteered to take part as a test subject in PMO’s first wet lab for the sobriety test class.
Lance Cpl. Christopher Johns
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