Michigan has a regulatory scheme concerning firearms that places great limitations on how local governments are able to enforce alleged firearms violations. Michigan Compiled Law 123.1102 states that “[a] local unit of government shall not impose special taxation on, enact or enforce any ordinance or regulation pertaining to, or regulate in any other manner the ownership, registration, purchase, sale, transfer, transportation, or possession of pistols, other firearms, or pneumatic guns, ammunition for pistols or other firearms, or components of pistols or other firearms, except as otherwise provided by federal law or a law of this state”. This means that local governments are not allowed to enact laws concerning firearms and pneumatic guns (bb guns or pellet guns), unless they are specifically allowed to under federal and/or state Law. The legal term for this practice is “preemption”. The doctrine of preemption is also supported by Michigan Court interpretation of the law (See Michigan Coalition for Responsible Gun Owners v. City of Ferndale, 256 Mich App 401 (2003)).
There are a few exceptions to preemption under state law that are contained in Michigan Compiled Law 123.1103. The local government is allowed to prohibit or regulate conduct that is a criminal offense in Michigan under state law. This means that local governments are allowed to adopt the language of state laws or state codes and enforce those codes. The local governments cannot adopt their own prohibitions that differ from state law (See MCL 123.1103(b)).
The state also allows local governments from preventing local government employees from transporting, carrying, and/or possessing pistols, firearms, and/or pneumatic guns in the course of their employment. In Michigan, local governments can also place restrictions on persons below the age of 16 from carrying pneumatic guns in public (See MCL 123.1103(c)).