42 USC 1983 provides a civil remedy when a person acting under color of state law causes a deprivation of a federal right. It does not make every unfair government action a federal lawsuit. A claimant must identify the right, the responsible defendant’s conduct, and the connection between that conduct and the injury. [1]
Choose defendants by their role
An individual official may be sued for personal involvement in the alleged deprivation. A city or county can be a defendant in appropriate circumstances, but municipal liability is not established merely because it employed the person who acted. The policy, custom, or other legally sufficient basis for the government’s responsibility must be identified. [2]
For example, alleging that an officer used unconstitutional force raises one set of questions about the officer. Naming the city as an additional defendant requires a separate explanation of municipal responsibility. Simply listing every supervisor does not establish personal liability.
State action and the underlying right
The statute’s “under color” requirement commonly concerns misuse of governmental authority. A private dispute does not automatically become state action because a party has a government license or knows an official. Some private conduct can qualify under specific legal tests, but facts supporting those tests are necessary. [1][2]
The underlying constitutional or federal statutory rule also matters. Search, detention, procedural due process, and equal protection claims can require different elements and evidence.
Immunity can limit relief
Officials may assert qualified immunity against individual-capacity damages claims. Certain functions can carry absolute immunity. Governments and official-capacity claims raise additional questions, including sovereign immunity and the distinction between damages and prospective relief. The defendant’s role and the requested remedy must be analyzed together. [2]
Section 1983 itself restricts injunctive relief against judicial officers for judicial-capacity acts unless its specified conditions apply. A request labeled “injunction” does not automatically avoid every immunity rule. [1]
Plan the case before the deadline
- Identify the precise federal right and event dates.
- Connect each defendant to specific conduct.
- Preserve records, video, notices, and witness information.
- Evaluate immunity and available relief.
- Determine the applicable limitations and procedural requirements.
Related statutes include Section 1986's failure-to-prevent claim and Section 1987's prosecution framework. Those provisions are not interchangeable substitutes when a Section 1983 claim has a defendant or immunity problem.
Primary sources
Sources checked: October 31, 2026.