Whether the Fourth Amendment applies to a police officer's intentional use of physical force against a fleeing person, if that use of force does not succeed in terminating her movement.

Whether the Fourteenth Amendment fully incorporates the Sixth Amendment guarantee of an unanimous verdict in a criminal case.

The American Civil Liberties Union and the ACLU of Kansas filed an amicus brief in Kahler v. Kansas, calling on the Supreme Court of the United States to overturn the Kansas Supreme Court's decision abolishing the state's insanity defense.

The American Civil Liberties Union, the ACLU of Wisconsin, and the law firm of Covington & Burling LLP filed a class-action lawsuit today against the City of Milwaukee over its police department’s vast and unconstitutional stop-and-frisk program. The department targets tens of thousands of people without reasonable suspicion of criminal activity, the legal requirement for a police stop. The department’s repeated violations of Milwaukeeans’ constitutional rights are driven by racial profiling, with preliminary data showing significant disparities between police stop rates for white people and for Black and Latino people.