What is the police officers main firearm?

-Police Forces over the world have their own choice, but in NSW Australia, as in many forces, the choice is the Glock 9mm Automatic.

-If you're asking about what most Officers use in the U.S. it can the 9mm Beretta, the GLock, Hechler & Koch (HK), Sig Sauer - or any other reputable namebrand manufacturer of sidearms. Calibers in use in the US, can be quite varied but are usually the: 9 mm - 10 mm - 40 cal - 45 cal round.