Can a city or village police
officer enforce traffic regulations on both sides of a road that serves
as a boundary between a city/village and a township or between a
city/village and a city/village?
Yes. Wisconsin Statute section 175.40(4) provides:
A peace officer whose
boundary is a highway may enforce any law or ordinance that he or she
is otherwise authorized to enforce by arrest or issuance of a citation
on the entire width of such a highway and on the entire intersection of
such a highway and a highway located in an adjacent jurisdiction. This
subsection does not extend an officer’s jurisdiction outside the
boundaries of this state.
Thus, a city or village police officer
may enforce a traffic regulation on both sides of a road that serves as a
boundary between the city/village and a township or as a boundary
between the city/village and another city/village irrespective of
whether the city or village boundary covers all or none of the boundary
highway.