A Belgian-made FN semi-automatic pistol, that can only be purchased in California by law enforcement officers, is displayed for a photo at TDS Guns in Rocklin, Calif., on Tuesday, Nov. 8, 2011. A federal investigation into weapons-dealing in three Sacramento-area law enforcement agencies has opened a window on exemptions in California law that let peace officers buy guns, high-capacity magazines, short-barreled shotguns and even assault weapons that are illegal for average citizens. Peace officers are also allowed to purchase handguns, like the one displayed, that aren't among the 1,319 models certified by the state Department of Justice as having met firing, safety and drop tests. (AP Photo/Rich Pedroncelli)  Ran on: 11-09-2011 This Belgian semiautomatic pistol is legal for purchase only by law officers. Photo: Rich Pedroncelli, AP
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