PLS HELP
Describe under what circumstances a state or locality may prohibit firearm ownership.

Many states prohibit or restrict gun possession by other groups of people, such as stalkers and people subject to other kinds of restraining orders, minors, juvenile offenders, and those convicted of alcohol- and/or drug-related crimes. Under federal law, people are generally prohibited from purchasing or possessing firearms if they have been convicted of a felony or some domestic violence misdemeanors, or if they are subject to certain court orders related to domestic violence or a serious mental condition.

Explanation:

a system of cooperative federalism emerged, as the powers of the federal government expanded.