Featured Cases

Court Case
Oct 23, 2025
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  • Freedom of Speech and Association|
  • +1 Issue

O’Hara v. Beck: Defending the Right To Protest the National Guard

In Star Wars, the Imperial March is the music that plays when Darth Vader and his storm troopers enter the scene. It’s also the soundtrack of Sam O’Hara’s protest against the National Guard’s presence in D.C. National Guard troops arrived in the District after President Donald Trump deployed them to support local police—an act that Mr. O’Hara views as a violation of centuries-old norms against militarizing domestic law enforcement and a threat to individual freedom. To highlight the surreal danger of the deployment, Mr. O’Hara began walking behind Guard members when he saw them in the community, playing The Imperial March on his phone, and recording. Most community members got the point of the protest, and so did several members of the Guard, who either smiled or laughed in response. Ohio National Guard Sgt. Devon Beck, however, was not amused by the satire. He threatened to call MPD if Mr. O’Hara didn’t stop his protest. When Mr. O’Hara persisted, Sgt. Beck recruited MPD officers to the scene, and the officers proceeded to detain and handcuff Mr. O’Hara, ending his demonstration. The First and Fourth Amendments (not to mention D.C. law) bar government officials from detaining people just because of their speech. Mr. O’Hara is suing to vindicate that principle. Press Release
Court Case
Sep 25, 2025
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  • Police Practices and Police Misconduct|
  • +1 Issue

Escobar Molina v. Dep’t of Homeland Security – Challenging Warrantless Immigration Arrests Without Probable Cause in D.C.

On September 25, 2025, four Washington, D.C. community members and the national immigration organization CASA sued the Trump administration to end its policy and practice of making immigration arrests in D.C. without a warrant and without probable cause. The plaintiffs are represented by the American Civil Liberties Union of the District of Columbia, American Civil Liberties Union, Amica Center for Immigrants’ Rights, CASA, National Immigration Project, the Washington Lawyers’ Committee for Civil Rights and Urban Affairs, and the law firm of Covington & Burling. Since August, federal officers from multiple agencies have made hundreds of immigration arrests in the District. The officers frequently patrol and set up checkpoints in neighborhoods where a large number of immigrants live and stop and arrest people as they go about their daily lives. The law typically requires an agent to have a warrant when arresting someone for an immigration violation. One exception to the warrant requirement is when the agent has probable cause both that a person is in the United States in violation of the law and is likely to escape before a warrant can be obtained. According to the lawsuit, the Trump administration has a policy and practice of making immigration arrests without a warrant and without an individualized determination of probable cause that the person is in the country unlawfully and that the person is a flight risk. Each plaintiff in the case was arrested, detained, and released. The lawsuit was filed as a class action. The plaintiffs seek a court ruling to prevent the government from conducting such unlawful arrests against them and others in the future. On October 3, 2025, Plaintiffs filed a motion for class certification and a motion for a preliminary injunction, to stay agency action, and for provisional class certification to ask the Court to order Defendants and their agents to stop making warrantless immigration arrests without probable cause for flight risk, as required by the Immigration and Nationality Act.

All Cases

38 Court Cases
Court Case
Jul 29, 2025
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  • Racial Justice|
  • +2 Issues

Black Lives Matter D.C. v. Trump – Challenging Federal Officers’ Unprovoked Attack on Civil Rights Demonstrators at Lafayette Square in Front of the White House

A coalition of civil rights orgs sued President Trump and high-level officials for tear-gassing protesters outside the White House on June 1, 2020.
Court Case
Jul 25, 2025
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  • Criminal Justice Reform|
  • +1 Issue

Martin v. United States – Fighting to preserve federal officer accountability for constitutional violations

Court Case
Sep 07, 2023
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  • Freedom of Speech and Association|
  • +1 Issue

Molina v. Book – Advancing the right to observe police, and challenging qualified immunity doctrine, which shields officials from constitutional accountability

In 2015, police officers shot tear gas at two legal observers with bright green "Legal Observer" hats. The court ruled that words printed on clothing are not entitled to First Amendment protections. Together with the National ACLU and the ACLU of Missouri, we petitioned SCOTUS to review the case.
Court Case
Nov 04, 2021
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  • Police Practices and Police Misconduct|
  • +2 Issues

Cameron v. District of Columbia – Challenging Practice of Needlessly Retaining Arrested Individuals' Cell Phones for Months or Years Without Process

Court Case
Aug 12, 2021
Asinor v. D.C. pic
  • Police Practices and Police Misconduct|
  • +2 Issues

Asinor v. District of Columbia – Challenging Use of Chemical Irritants and Less-Lethal Projectiles Against Demonstrators and Journalists

The ACLU-DC filed a lawsuit on behalf of two photojournalists against the District of Columbia and 8 D.C. Metropolitan Police Department officers for unleashing chemical irritants and stun grenades one month after the D.C. Council instilled a ban on the use of these weapons during demonstrations.
Court Case
Apr 29, 2021
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  • Police Practices and Police Misconduct|
  • +1 Issue

Young Freedom of Information Act Requests

On April 28, 2021, the ACLU-DC filed three D.C. Freedom of Information Act requests with multiple District agencies to ask for information regarding Mr. Young's death.
Court Case
Feb 16, 2021
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  • Criminal Justice Reform|
  • +2 Issues

ACLU-DC v. District of Columbia – Challenging D.C. Police’s Failure to Release Stop-and-Frisk Data

Court Case
Jan 13, 2020
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  • Police Practices and Police Misconduct|
  • +1 Issue

Mwimanzi v. Wilson – Challenging Unconstitutional Sexually Invasive Search by MPD Officer

Court Case
Apr 29, 2019
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  • Police Practices and Police Misconduct|
  • +1 Issue

Price v. Gupton - Challenging Warrantless Search of Residential Property Belonging to Mother Whose Son Had Just Been Killed by D.C. Police