Authority to arrest without a warrant

Wis. Stat. § 345.22
in effect
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A person may be arrested without a warrant for the violation of a traffic regulation if the traffic officer has reasonable grounds to believe that the person is violating or has violated a traffic regulation.
Source: WI Statutes (Official Site)URL: https://docs.legis.wisconsin.gov/document/statutes/345.22Fetched: 10/7/2026