Court Cases

The ACLU of Colorado filed an amicus brief arguing that Colorado’s Sexually Violent Predator designation is punishment.

In a precedent setting opinion, the court stated that “the use of less-lethal munitions—as with any other type of pain-inflicting compliance technique—is unconstitutionally excessive force when applied to an unthreatening protester who has neither committed a serious offense nor attempted to flee."

The ACLU of Colorado filed an amicus brief urging the Colorado Supreme Court to conclude that Colorado state protections preempt municipal sentencing schemes that punish identical conduct more harshly and such schemes violate Colorado’s longstanding equal protection guarantee. On December 22, 2025, the Court held that municipalities may not authorize harsher sentences than state law allows for an identical offense.

The ACLU of Colorado filed an appeal on behalf of a person incarcerated in the Colorado Department of Corrections (CDOC) whose case challenging a prison disciplinary conviction was dismissed because he missed the deadline for filing. Our client alleges he did everything he could to file on time and only missed the deadline because of CDOC’s own delay in providing him the documents he needed. The lower court agreed he had shown good cause for filing late but concluded it had no choice but to ignore those circumstances and apply the deadline strictly to bar his claims.

The ACLU of Colorado filed a class action lawsuit seeking a declaration that state of Colorado officials are illegally confining hundreds of children in dangerous detention facilities instead of providing them with community services.

This case concerns the Colorado Springs Police Department’s use of unconstitutional warrants to comb through activists’ digital data in retaliation for their political speech and association.

The ACLU of Colorado filed an amicus brief in support of a class action lawsuit brought by incarcerated Coloradans alleging the state is violating the voter-approved constitutional amendment banning slavery in all instances—including for those convicted of crimes.

The ACLU of Colorado filed an Amicus Brief seeking to provide the Court with Colorado-specific context that counsels strongly against eroding the protection provided by a second competency evaluation by an evaluator of the raising party’s choice.

The ACLU of Colorado filed an amicus brief with Spero Justice and Office of the Alternate Defense Counsel arguing that Colorado’s habitual sentencing scheme is unconstitutional.