In this state, the use of stun guns by citizens is prohibited.
Michigan law states that you cannot possess "a portable device or weapon from which an electrical current, impulse, wave, or beam may be directed, which current, impulse, wave, or beam is designed to incapacitate temporarily, injure, or kill."
Now Some legislators want to change that. From the Associated Press:
Michigan residents with permits to carry concealed pistols also would be able to carry stun guns or Tasers under a measure approved by the state Senate. A key bill in a legislative package that would allow the devices to be carried by properly licensed residents passed the Senate by a 35-3 vote Tuesday. The measure advances to the House. Michigan would join 43 other states that allow residents to carry stun guns under certain circumstances. Michigan law has banned the use of stun guns since 1976, with exceptions for police and some other personnel. Laws that cover the use and licensing of concealed handguns in Michigan also would apply to stun guns or Tasers under the Senate legislation. That includes certain "no carry" zones such as schools and stadiums.
Stun guns advocates say they're effective tools for self-defense.
Or they could be used to subdue someone with an exceptionally long question at a political forum (the genesis of "don't tase me, bro!" phrase) .