Immigrants' Rights

While we’ve seen a surge of extreme anti-immigrant policies and rhetoric, the fundamental constitutional protections of due process and equal protection embodied in our Constitution and Bill of Rights apply to every person, regardless of immigration status. And we will fight to protect those rights.

Collage of Statue of Liberty and immigrant families

Regardless of your immigration status, you have guaranteed rights under the Constitution.

Learn more about your rights as an immigrant, and how to express them.

Obtenga más información sobre sus derechos como inmigrante y cómo expresarlos.

The Latest

Press Release
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ACLU of Wisconsin Files Original Action With Wisconsin Supreme Court on Behalf of Voces de la Frontera to Terminate ICE Detainers in County Jails

The ACLU of Wisconsin filed a petition on behalf of Voces de la Frontera to the Wisconsin Supreme Court to declare that honoring ICE detainers are illegal.
Issue Areas: Immigrants' Rights
News & Commentary
Collage of Statue of Liberty and a protest sign reading "Immigrants are welcome here"

SCOTUS Just Gave ICE a Green Light to Profile Latinos. We Should All Be Outraged.

The U.S. Supreme Court lifted a ban on racial profiling, raising serious constitutional and human rights concerns.
News & Commentary
Collage of military troops

Liberty and the Domestic Use of the Military

Trump’s deployment of the National Guard in U.S. cities raises anxieties and civil liberties concerns.
News & Commentary
Collage of Statue of Liberty and a protest sign reading "Immigrants are welcome here"

The "Keep Families Together" Package: Drawing the Line Against Authoritarianism

These bills directly respond to authoritarian-style abuses like secret police, due process violations, and local immigration detention.
Court Case
Oct 06, 2025

Terminating ICE Detainers in Wisconsin with Voces de La Frontera

The ACLU of Wisconsin has filed a petition on behalf of immigrant rights group Voces de la Frontera asking the Wisconsin Supreme Court to declare that the practice of Wisconsin jails honoring ICE detainers is illegal. The petition names five Wisconsin county sheriffs' offices—Walworth, Brown, Kenosha, Sauk, and Marathon—as respondents to terminate their practice of honoring ICE detainers. An ICE detainer is a voluntary request to a local sheriff to hold individuals for an additional 48 hours after they should have been released under state law so that ICE can take custody of and deport them. The lawsuit contends that honoring an ICE detainer constitutes an arrest, and Wisconsin law enforcement does not have the authority to make arrests based solely on ICE's civil administrative “warrants.” The organization believes this issue requires a rapid and decisive ruling, as ICE continues to send hundreds of these detainers to Wisconsin jails, and people throughout the state are being illegally held for days so that ICE can pick them up. ICE sends detainers even for people with no criminal records or people who still have charges pending in Wisconsin courts. If the lawsuit is successful, Wisconsin local and state law enforcement would not be allowed to hold anyone in jail beyond their release dates pursuant to a detainer. This has been part of a series of work undertaken by the ACLU of Wisconsin, which recently released a report investigating immigration enforcement in Wisconsin. The report shows just how closely local law enforcement and Immigration and Customs Enforcement (ICE) are working together and how law enforcement agencies are feeding the deportation machine to make money.
Court Case
Apr 27, 2025

Defending International Students After Immigration Status Termination

We filed an amicus brief in two separate cases challenging the random revocation of international students’ visas at the University of Wisconsin and other universities throughout the state.
Court Case
Dec 20, 2006

Castaneda v. Welch: Milwaukee FPC Must Investigate Citizen Complaints