OFFUTT AIR FORCE BASE, Neb. -- Staff Sgt. John Grunik, a criminal investigator with the 55th Security Forces Squadron, dusts a keyboard for prints inside Bldg. 160 here on Dec. 7, 2009 during a simulated investigation. The 55th SFS criminal investigation section consists of a three man team that investigates a variety of crimes including theft, assault and drug related incidents. U.S. Air Force photo by Charles Haymond