In recent years, stun gun bans have also been invalidated or repealed in Michigan, Wisconsin, D.C., the Virgin Islands, Overland Park, Kan., and Annapolis, Anne Arundel County, Baltimore County, Harford County, and Howard County (all in Maryland); the Baltimore City government is apparently working on the repeal as well, in the wake of a lawsuit.
Stun gun bans remain in effect, to my knowledge, in Hawaii; Massachusetts; New York; Rhode Island; Philadelphia; Tacoma, Wash.; and Wilmington, Del., plus some smaller towns. The Massachusetts and New York governments are fighting challenges brought by the Center for Individual Rights and Middleburgh, N.Y., Mayor Matthew Avitabile, respectively. I hope to have more on the Massachusetts litigation soon. Stun guns are also heavily regulated (e.g., with total bans on carrying in most places outside the home) in some other places.