Madison operates an informal Welcoming City policy: police do not ask about immigration status during ordinary contacts and limit cooperation with ICE detainers. Wisconsin law constrains formal sanctuary designations.
Madison Police Department's Standard Operating Procedure on immigration directs officers not to inquire about immigration status during routine contacts, traffic stops, or while assisting victims and witnesses. The city's Welcoming Initiative coordinates immigrant integration services across departments, libraries, and Public Health Madison & Dane County. Madison's Common Council has resisted formal sanctuary city ordinances because Wis. Stat. 66.0136 and recurring legislative proposals threaten state funding cuts to municipalities that adopt express sanctuary policies. Federal civil ICE detainers are honored only when accompanied by a judicial warrant, consistent with Fourth Amendment case law.
Madison employees deviating from the SOP face internal discipline. The city itself risks legislative funding fights if state preemption laws expand or are strictly enforced.
See how Madison's sanctuary policy preemption rules stack up against other locations.
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