Wis. Stat. § 943.06: Molotov cocktails.

(1) As used in this section, “fire bomb” means a breakable container containing a flammable liquid with a flash point of 150 degrees Fahrenheit or less, having a wick or similar device capable of being ignited, but does not mean a device commercially manufactured primarily for the purpose of illumination.

(2) Whoever possesses, manufactures, sells, offers for sale, gives or transfers a fire bomb is guilty of a Class H felony.

(3) This section shall not prohibit the authorized use or possession of any such device by a member of the armed forces or by fire fighters or law enforcement officers.