In this case, the .40 caliber submachine guns with clips holding 30 rounds are for the Office of Inspector General. OIG special agents, who are authorized to make arrests, serve warrants and carry firearms, conduct hundreds of criminal investigations, including undercover operations, annually into fraud, theft, smuggling, bribery and extortion, said a spokesman, and some involve potentially life-threatening situations. “The procurement pertains to OIG’s effort to replace automatic firearms with new semi-automatic firearms,” he said.