Excessive use of force is any physical force a law enforcement officer applies that a reasonable officer would have considered unnecessary under the same circumstances. The Supreme Court set that test in 1989, calling it “objective reasonableness,” and it governs every claim arising from an arrest, stop, or other police encounter, whether the officer used hands, a taser, a baton, a dog, or a firearm.1U.S. Reports (Library of Congress). U.S. Reports: Graham v. Connor et al., 490 U.S. 386 (1989) The standard measures the officer’s conduct against what a trained officer facing the same facts would have done, not against what looks right in hindsight.
How the Law Defines Reasonable Force
The foundational case is Graham v. Connor (1989). The Supreme Court unanimously held that excessive force claims against police should be analyzed under the Fourth Amendment’s protection against unreasonable seizures.2Oyez. Graham v. Connor Before Graham, lower courts applied inconsistent tests. The Court replaced that patchwork with one question: was the officer’s action objectively reasonable given the facts known at the time, regardless of the officer’s personal intentions?1U.S. Reports (Library of Congress). U.S. Reports: Graham v. Connor et al., 490 U.S. 386 (1989)
Two features of this standard trip people up. First, the evaluation is made from the perspective of a reasonable officer on the scene, not a judge reviewing the case months later with every fact laid out. Courts specifically reject “20/20 hindsight.” If an officer reasonably believed a suspect was reaching for a weapon, the fact that no weapon was later found does not automatically make the force excessive.1U.S. Reports (Library of Congress). U.S. Reports: Graham v. Connor et al., 490 U.S. 386 (1989)
Second, the Court built in an allowance for the realities of policing, acknowledging that officers often make split-second decisions “in circumstances that are tense, uncertain, and rapidly evolving.”3Federal Law Enforcement Training Centers. Part I Graham v. Connor That cushion makes excessive force harder to prove than many people expect.
The Three Factors Courts Weigh
Graham identified three factors courts examine when deciding whether force was reasonable. They aren’t a rigid checklist, and other circumstances can matter, but nearly every excessive force case turns on some combination of them.
- Severity of the crime. Officers get more latitude confronting a violent felony than a minor traffic violation. Tackling an armed robbery suspect is a different risk calculation than wrestling someone over an expired registration.
- Immediate threat to officers or others. This factor usually carries the most weight. A suspect with a weapon, lunging at someone, or making credible threats justifies more force than a person seated on the ground with hands visible.
- Resistance or flight. Actively fighting officers or running justifies more force than standing still or passively refusing to move. The kind of resistance also matters; stiffening up is not the same as throwing punches.
Courts look at the totality of circumstances, so a single factor rarely decides a case on its own.1U.S. Reports (Library of Congress). U.S. Reports: Graham v. Connor et al., 490 U.S. 386 (1989) An officer may face a fleeing suspect (third factor favors force) who committed a minor offense (first factor doesn’t) and threatened no one (second factor doesn’t). All three realities get weighed at once.
Encounters Involving Mental Health Crises
Psychiatric distress does not give officers more leeway. If anything, it cuts the other way. Federal law enforcement training materials state that when a mentally impaired person is not posing an immediate threat, “there is probably time to consider other, less intrusive options.” Courts have found force excessive when officers repeatedly tased someone in a mental health hold who had committed no crime, was seated on the ground, and was surrounded by officers and hospital staff.4Federal Law Enforcement Training Centers. Use of Force – Part II The standard Graham factors still apply; the absence of an immediate threat in these encounters tends to weigh heavily against using force at all.
When Deadly Force Is Legally Permitted
A firearm or any force likely to cause death triggers a stricter rule. In Tennessee v. Garner (1985), the Supreme Court held that officers cannot use deadly force to stop a fleeing suspect unless they have probable cause to believe the suspect poses a significant threat of death or serious physical injury to the officer or others.5Justia U.S. Supreme Court Center. Tennessee v. Garner, 471 U.S. 1 (1985) The Court put it bluntly: “It is not better that all felony suspects die than that they escape.”
Before Garner, many states permitted officers to shoot any fleeing felon. The Court struck down those laws, holding that the Fourth Amendment prohibits deadly force against an unarmed, nondangerous person who is simply running away.6Oyez. Tennessee v. Garner Deadly force to prevent escape is constitutional only when the suspect threatens the officer with a weapon, or there is probable cause to believe the suspect committed a crime involving serious physical harm. Where feasible, the officer must give a warning first.5Justia U.S. Supreme Court Center. Tennessee v. Garner, 471 U.S. 1 (1985)
In practice, an officer who shoots a suspect fleeing an armed robbery after that suspect fires at police will almost certainly be found reasonable. An officer who shoots an unarmed teenager running from a burglary, which was the actual fact pattern in Garner, will not.
Which Amendment Applies Depends on Your Status
Who you were at the moment force was used changes which part of the Constitution protects you and what you have to prove.
- Free citizens during arrests and stops. The Fourth Amendment’s bar on unreasonable seizures applies, using Graham‘s objective reasonableness standard.1U.S. Reports (Library of Congress). U.S. Reports: Graham v. Connor et al., 490 U.S. 386 (1989)
- Pretrial detainees held in custody but not convicted. The Fourteenth Amendment’s Due Process Clause governs. In Kingsley v. Hendrickson (2015), the Supreme Court held that a pretrial detainee need only show the force was objectively unreasonable and does not have to prove the officer acted with a subjective intent to harm.7Justia U.S. Supreme Court Center. Kingsley v. Hendrickson, 576 U.S. 389 (2015)
- Convicted prisoners. The Eighth Amendment’s prohibition on cruel and unusual punishment applies, but it sets a steeper bar. A prisoner must show the officer used force “maliciously and sadistically for the very purpose of causing harm” rather than in a good-faith effort to maintain order. Negligence, or even unreasonableness, is not enough; the focus is on the officer’s subjective mindset.
The practical difference is significant. Free people and pretrial detainees get an objective test. Convicted prisoners carry the much heavier burden of proving sadistic intent. Identical conduct can be unconstitutional in a jail’s intake area and lawful in its general population wing, based solely on whether the person had been convicted yet.
Qualified Immunity Blocks Many Cases
Even when force was objectively unreasonable, a doctrine called qualified immunity can shut the courthouse door. The Supreme Court established in Harlow v. Fitzgerald (1982) that government officials are shielded from civil liability unless their conduct violated a “clearly established” constitutional right, meaning a reasonable officer would have known the specific behavior was unlawful.8Oyez. Harlow v. Fitzgerald
Courts apply a two-part test. Did the officer violate a constitutional right, and was that right clearly established at the time? A court can address either question first, and if either answer is no, the officer wins.9Justia U.S. Supreme Court Center. Pearson v. Callahan, 555 U.S. 223 (2009)
This is where most excessive force cases die. The “clearly established” prong demands prior case law in the same jurisdiction with facts close to yours. Courts read that requirement narrowly. A ruling involving a taser during a car stop may not clearly establish the law for a taser used during a foot chase, even though the underlying constitutional principle is identical. The result is that genuinely excessive force can go uncompensated because no earlier court ruled on facts similar enough to put the officer on notice.
Suing for Excessive Force Under Section 1983
The main tool for holding officers financially accountable is 42 U.S.C. § 1983, which lets anyone deprived of a constitutional right by a person acting under state authority sue for damages.10Office of the Law Revision Counsel. 42 U.S. Code 1983 – Civil Action for Deprivation of Rights In an excessive force case, the right at issue is typically the Fourth Amendment.
Successful plaintiffs can recover compensatory damages for medical bills, lost income, pain and suffering, emotional distress, and permanent injury. Punitive damages are available against individual officers whose conduct was especially egregious, though not against the municipality itself. Even without concrete financial loss, courts can award nominal damages (often one dollar) to formally recognize that a constitutional violation occurred.
Suing the City or County
Under the Monell doctrine, you can also sue a city or local government, but not simply because it employed the officer. Municipal liability requires proof that an official policy, widespread practice, or deliberate failure to train was the “moving force” behind the violation. The most common route is showing a pattern of similar misconduct the agency knew about and failed to address, amounting to deliberate indifference. Internal affairs records, training manuals, and prior complaints help build this case. Reaching the government’s deeper pockets rather than just the individual officer is difficult by design.
Deadlines That Can End Your Case Before It Starts
Section 1983 has no built-in statute of limitations. Federal courts borrow the deadline from the state where the incident happened, using that state’s personal injury statute. Deadlines range from one to six years. Missing the deadline almost always bars the case permanently, no matter how strong the facts.
Suing a government entity adds a second clock. Many states require a formal “notice of claim” filed with the government well before any lawsuit, sometimes within as few as 90 days of the incident. Missing that notice can be fatal even if the longer statute of limitations has not expired. These two deadlines are among the most common reasons otherwise valid excessive force claims never get heard.
Criminal Prosecution Under Federal Law
Excessive force is not only a civil matter. Under 18 U.S.C. § 242, any person acting under color of law who willfully deprives someone of a constitutional right faces federal criminal prosecution. Penalties scale with the harm caused:11Office of the Law Revision Counsel. 18 U.S. Code 242 – Deprivation of Rights Under Color of Law
- No bodily injury: up to one year in prison and a fine.
- Bodily injury, or use of a dangerous weapon: up to ten years.
- Death results: any term of years, life in prison, or the death penalty.
The decisive word is “willfully.” Federal prosecutors must prove the officer acted with deliberate intent to deprive someone of a constitutional right, which is a higher bar than the civil standard. Federal criminal charges against officers are rare and typically reserved for the most severe incidents.
Steps to Take After an Excessive Force Incident
What you do in the days immediately after the incident matters enormously for any future legal claim.
- Get medical attention immediately. Records created on the day of the incident are far more persuasive than a doctor’s visit weeks later, and they document injuries that may worsen or fade.
- Preserve everything. Photograph your injuries as they develop. Save torn or bloodied clothing. Write down what happened while the details are fresh, including what the officer said, what you said, and who else was present.
- Identify witnesses. Get names and contact information from anyone who saw the incident. Bystander cell phone footage has become critical evidence in excessive force cases.
- Request body camera footage. Many agencies must retain body-worn recordings, but retention policies vary and footage can be overwritten. File a public records request promptly.
- File a formal complaint. Most agencies accept complaints in writing, orally, or electronically, and forms should be available at police stations and municipal offices. An internal affairs investigation creates an official record even if the complaint is not sustained.12United States Department of Justice COPS Office. Standards and Guidelines for Internal Affairs
- Talk to a civil rights attorney quickly. The statute of limitations and notice-of-claim deadlines described above can be unforgiving. An attorney can identify which deadlines apply in your state and keep the claim alive.
Filing a complaint with internal affairs or a civilian oversight board does not preserve your right to sue. Those are separate processes with separate clocks. Treat the administrative complaint and the legal claim as two independent tracks, each with its own deadline.