When police respond to a mental health crisis, the officer’s job is to stabilize the scene, decide whether the person meets the state’s legal criteria for an emergency psychiatric hold, and either transport them to a facility for evaluation or resolve the call without custody. That decision is governed by state involuntary detention statutes, the Fourth Amendment, and, increasingly, by whether the jurisdiction has a clinician or civilian crisis team available to take the call instead of a patrol officer.
Behavioral health calls make up an estimated 7 to 10 percent of police encounters, and the typical patrol officer handles about six such calls a month. What actually happens on any given call depends on three things: the officer’s training, the person’s behavior measured against a specific legal standard, and what alternatives to a police response exist in that community.
What the Officer Is Trying To Do on Scene
Every patrol officer receives some training on recognizing behavioral health crises, though the depth varies widely. The Bureau of Justice Assistance recommends that officers responding to these calls be trained in recognizing signs and symptoms of mental illness, stabilization and de-escalation techniques, available community resources, and the legal standards for intervention.1Bureau of Justice Assistance. The Essential Elements of PMHC Programs – 3. Specialized Training
De-escalation is the center of that training. The techniques are simple to describe: speak in a calm, measured tone, use short and direct sentences, listen without interrupting, and avoid commands a disoriented person cannot process. Officers are trained to create physical space rather than close it, keep their hands visible, and adopt a non-confrontational posture. The goal is to slow the encounter down. A person in acute psychiatric distress often cannot comply with rapid-fire instructions, and treating that noncompliance as defiance is where these situations go wrong.
While the officer is trying to reduce the temperature of the encounter, they are also making a factual assessment against the state’s criteria for an involuntary hold. Officers are not expected to diagnose anyone. They are asked to observe behavior and gather reliable information from witnesses, family, or the person themselves.
When an Officer Can Take Someone Into Custody
A person in mental health crisis who has not committed a crime cannot simply be arrested. The officer’s authority to take custody comes from state emergency detention or involuntary commitment statutes, which permit temporary custody solely for a psychiatric evaluation. The names and procedures vary by state, but the criteria are broadly similar.
Officers are looking for one of three situations:
- Danger to self. The person is expressing intent to die by suicide, engaging in self-harm, or behaving in a way that creates an immediate risk of serious physical injury to themselves.
- Danger to others. The person’s behavior, threats, or actions indicate an intent or likelihood to cause serious harm to another person.
- Grave disability. The person’s mental condition has left them unable to provide for basic survival needs like food, shelter, or self-care, creating a substantial risk of physical harm even without active suicidal or violent behavior.2Psychiatric Services. State Laws on Emergency Holds for Mental Health Stabilization
A small number of jurisdictions have not adopted the grave disability standard.
Taking a person into custody for a psychiatric evaluation is a seizure under the Fourth Amendment, and federal courts have held that it requires the same constitutional justification as any other seizure: probable cause. At least nine federal circuit courts have ruled that an emergency mental health seizure requires probable cause that the person is mentally ill and dangerous, because such a seizure is as intrusive as a criminal arrest.3Journal of the American Academy of Psychiatry and the Law. Legal Standard for Warrantless Mental Health Seizure Some state statutes use the phrase “reason to believe,” but courts have read that language as equivalent to probable cause.
An officer’s hunch that someone is “acting strange” is not enough. The officer needs articulable facts, drawn from direct observation or reliable third-party information, supporting a reasonable conclusion that the person meets the state’s criteria.
Use of Force in a Mental Health Encounter
The legal standard for police use of force comes from the Supreme Court’s decision in Graham v. Connor, which held that excessive force claims arising from an arrest or seizure are analyzed under the Fourth Amendment’s reasonableness standard. Courts judge an officer’s actions from the perspective of a reasonable officer on the scene, not with the benefit of hindsight.4Library of Congress. Graham v. Connor, 490 U.S. 386 (1989)
Federal courts have refused to create a separate use-of-force analysis for encounters with people who are mentally ill. The same factors apply: the severity of the threat the person poses, the seriousness of any crime at issue, and whether the person is actively resisting or trying to flee. An officer is not required to accept a greater risk of injury because a person’s aggression stems from mental illness rather than criminal intent. At the same time, a person’s known mental health condition is part of the totality of the circumstances a reasonable officer would consider, and a failure to attempt de-escalation when it was feasible can weigh against the officer in court.
Title II of the Americans with Disabilities Act also applies to law enforcement as a public entity. The implementing regulations require police to make reasonable modifications to their policies and practices to avoid discriminating against people with disabilities, including mental illness, and officers are required to make appropriate efforts to determine whether perceived strange or disruptive behavior results from a disability.5ADA.gov. Americans with Disabilities Act Title II Regulations What “reasonable modification” means during a fast-moving crisis remains unsettled. The Supreme Court had a chance to clarify this in City and County of San Francisco v. Sheehan but dismissed the ADA question without deciding it.6Justia Law. City and County of San Francisco v Sheehan, 575 U.S. 600 (2015) Lower courts continue to work through these questions case by case.
Where the Person Goes and How Long They Can Be Held
Once an officer lawfully takes someone into custody under an emergency detention standard, the next step is transport to a facility equipped to conduct a psychiatric evaluation. In practice, that means a psychiatric emergency department, a crisis stabilization center, or a similar facility. The destination should not be a police station or jail. If an officer determines that the person has committed a crime warranting arrest, qualified staff should screen the person at jail intake for mental health needs and suicide risk.7Bureau of Justice Assistance. The Essential Elements of PMHC Programs – 6. Transportation and Custodial Transfer
The officer provides a handoff to clinical staff, describing the specific behaviors and circumstances that justified the hold. A mental health professional then evaluates the person and decides whether further treatment is needed on an involuntary or voluntary basis.
State law sets the maximum duration of the initial emergency hold. Seventy-two hours is the most common limit, used by roughly half the states, but the actual range runs from as short as 23 hours to as long as 10 days.8Psychiatric Services. Reasonable or Random: 72-Hour Limits to Psychiatric Holds If the person improves, they may be released or moved to voluntary treatment before the hold expires.
If clinicians believe the person needs treatment beyond the initial period, the case moves to a judicial process. A formal commitment hearing must occur within a timeframe set by state law. The Supreme Court held in Addington v. Texas that involuntary civil commitment requires proof by clear and convincing evidence, a higher bar than the ordinary civil standard, because of the liberty interest at stake.9Justia Law. Addington v. Texas, 441 U.S. 418 (1979) If a judge upholds the commitment, the person is typically committed for a set period, often up to 30 days, with periodic review hearings required thereafter.
Rights of the Person on the Hold and What Families Can Learn
An involuntary psychiatric hold is one of the most significant deprivations of liberty the government can impose outside the criminal justice system. The Fourteenth Amendment requires that any person facing involuntary commitment receive notice, a hearing, the right to counsel, and the opportunity to present evidence and cross-examine witnesses. States may offer stronger protections than this constitutional baseline, and many do.
The person also has the right to be informed of the reason for the hold. In practice, the treating facility handles that communication, not the officer who transported them. Many states require written notice of rights upon admission, including how to contest the hold and how to contact an attorney.
Family notification is governed by HIPAA. When a patient is incapacitated or unable to express a preference, a provider may share information with family members involved in the patient’s care if the provider determines, using professional judgment, that doing so is in the patient’s best interest.10eCFR. 45 CFR 164.510 If the patient is alert and able to communicate, the provider generally needs the patient’s agreement first, though agreement can sometimes be inferred from circumstances such as a family member’s prior involvement in treatment. A separate exception allows disclosure without consent when there is a serious and imminent threat to someone’s health or safety. The upshot is that families sometimes cannot get basic information about a relative who has been taken to a facility, because the law treats the person’s privacy rights as intact even during a psychiatric emergency.
When Someone Other Than Police Responds
A traditional patrol response is not the only option in many communities. Three models now supplement or replace it.
Crisis Intervention Teams
The Crisis Intervention Team model selects volunteer officers for a 40-hour training program conducted over five consecutive days. The curriculum goes deeper than academy instruction: officers hear from mental health clinicians, people who have experienced a crisis, and family members, visit treatment facilities, and practice role-play scenarios.11Bureau of Justice Assistance. Training for Police-Mental Health Collaboration Programs CIT-trained officers then serve as the primary responders to mental health calls in their departments. Research shows CIT officers are more likely to divert people to psychiatric facilities rather than jail.
Co-Responder Teams
A co-responder team pairs a police officer with a mental health clinician or social worker who respond together, ideally in the same vehicle.12Law Enforcement Bulletin. Co-Response Models in Policing The clinician can lead the interaction, conduct an on-scene assessment, and connect the person directly to treatment, while the officer handles safety.13The Council of State Governments Justice Center. Developing and Implementing Your Co-Responder Program
Civilian Crisis Teams
A growing number of communities dispatch teams with no police presence for nonviolent behavioral health calls. The most established example is CAHOOTS in Eugene, Oregon, which sends a medic (nurse, paramedic, or EMT) paired with a crisis worker trained in mental health. These teams carry no weapons and rely on de-escalation and harm reduction. Calls come through 911, and trained dispatchers route nonviolent behavioral health situations to the civilian team.14White Bird Clinic. What is CAHOOTS?
At the federal level, the 988 Suicide and Crisis Lifeline is designed as the phone contact point, and SAMHSA’s guidelines call for mobile crisis teams to be available to anyone, anywhere, and connected to 988 for an in-person response when a phone conversation is not enough.15Substance Abuse and Mental Health Services Administration (SAMHSA). 2025 National Guidelines for a Behavioral Health Coordinated Crisis System For a caller or a family member weighing whether to dial 911 or 988, that distinction matters: 988 routes toward a clinical response first, and 911 routes toward a police response first, with local variation in what backup or handoff options exist behind each door.