<Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (January 2017) (Learn how and when to remove this template message) </Td> </Tr> <P> Chicago police officers are required to buy their own duty equipment (except Taser x3, x26 and Motorola radio Motorola phone). All field officers must also be qualified to carry a Taser . Some officers choose to carry a backup weapon as well, which must meet certain specifications and requires annual qualification . </P> <P> The prescribed semiautomatic pistol must meet the following requirements: </P> <Ul> <Li> Be manufactured by Beretta, SIG, Glock, Ruger, Smith & Wesson, or Springfield Armory . </Li> <Li> Be chambered in 9mm, . 40 S&W, or . 45 ACP . </Li> <Li> Be double - action only, hammer or striker - fired . </Li> </Ul>

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