Wisconsin Administrative Code
Department of Safety and Professional Services
SPS 1-299 - Professional Services
SPS 30-49 - Private Detectives
Chapter SPS 34 - Firearms And Other Dangerous Weapons
Section SPS 34.07 - Other dangerous weapons

An owner or employee of an agency may only be armed with a dangerous weapon other than a firearm or electric weapon, which based on their training, they are proficient in handling. The person shall understand the legal limits of force with the weapon, the dangers of misuse of the weapon and the safety rules relating to the weapon. The agency shall, upon request of the department, provide documentation of the training or experience which prepared the person to be proficient in the use of the weapon.