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.
Wis. Stat. § 345.22
Authority to arrest without a warrant
Applied in 6 court decisions — leading case Welsh v. Wisconsin (1984)
Most recently applied in State v. Daniel S. Iverson (November 2015)
1971 c. 278
How often courts cite this section
Court decisions citing this, by year. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
Official source: Wisconsin State Legislature. Reproduced from public-domain Wisconsin statutes; confirm against the official source for the current text. Not legal advice.