Skip to main content
The new Teacher Workspace is here. Your first 3 assignments are free. Try it →

Tarasoff Duty

Tarasoff Duty is the tort law rule that can require a mental health professional to warn or protect an identifiable third party when a patient poses a serious, foreseeable threat.

Last updated July 2026

What is Tarasoff Duty?

Tarasoff Duty is the torts rule that says a mental health professional may have to take reasonable steps to protect someone who is being seriously threatened by a patient. The classic version of the rule comes from Tarasoff v. Regents of the University of California, where the court said confidentiality does not always end the analysis when another person faces foreseeable harm.

In plain terms, this is a duty that can extend beyond the therapist-patient relationship. Normally, mental health treatment depends on privacy, trust, and confidentiality. But if a patient makes a credible threat of violence, the law may require the professional to act instead of staying silent.

What counts as action can vary by state and fact pattern. A therapist might warn the potential victim, notify police, seek hospitalization, or take other reasonable protective steps. The point is not that one exact response is always required, but that the professional cannot ignore a serious and identifiable danger.

The Tarasoff rule sits inside the Torts unit on special relationships and duties because the duty does not come from ordinary bystander law. It grows out of a professional relationship that gives the therapist access to risk information and the ability to intervene. That is why the case is often discussed alongside confidentiality, mental health professional obligations, and the limits of privilege.

The hard part is the balancing test. If a therapist overreacts, the client may lose trust or treatment may suffer. If the therapist underreacts, a third party may be harmed and the professional or institution may face liability. In torts, that tension is the whole point of the doctrine: the law tries to assign responsibility when one person’s threat creates a preventable risk to someone else.

Why Tarasoff Duty matters in TORTS

Tarasoff Duty matters because it shows how tort law handles harm that is foreseeable but not yet carried out. Instead of waiting for an injury to happen, the law can impose a duty to act once a professional has enough information to recognize a serious risk. That makes it a great example of how negligence doctrine stretches beyond simple carelessness and into risk prevention.

It also ties directly into the special-relationships topic in Torts. Most strangers do not have a legal duty to protect random third parties, but therapists may because their role gives them unique access to information and a chance to intervene. That difference helps explain why courts treat professional relationships differently from ordinary social contact.

The rule also tests how far confidentiality goes. A lot of torts problems around Tarasoff are really about competing duties, one duty to keep information private and another duty to prevent foreseeable injury. If you can spot which duty is stronger on the facts, you can usually explain the likely liability analysis more clearly.

This term shows up in case discussions, issue spotters, and hypotheticals about a patient threatening a named person, a therapist hearing a specific plan, or a clinic deciding whether to warn police. Once you know Tarasoff Duty, you can read those facts as a duty-to-protect problem instead of just a vague ethics story.

Keep studying TORTS Unit 4

Official unit cheatsheet

open one-pager

How Tarasoff Duty connects across the course

Duty to Warn

Tarasoff Duty is often discussed as a duty to warn, but the idea is broader than just making a direct warning. Depending on the state and the facts, the professional may need to warn the target, contact law enforcement, or use another reasonable protective step. The key question is what response is legally enough to reduce the risk.

Confidentiality

Confidentiality is the starting point in therapy, because patients need privacy to speak honestly. Tarasoff creates an exception when silence could lead to serious foreseeable harm to another person. On a torts exam, the tension between privacy and protection is usually where the issue comes from.

Mental Health Professional

The duty applies to a professional who is positioned to evaluate the threat, not to every person who hears a scary statement. That makes the role of the therapist, counselor, or clinic central. The professional relationship is what gives the law a reason to impose a special duty that would not exist for a random bystander.

attorney-client privilege

This is a useful comparison because both doctrines protect private communications, but they protect different relationships and are limited in different ways. Tarasoff is about preventing harm to a third party, while attorney-client privilege is about legal confidentiality. Students often mix them up because both involve professional secrecy and exceptions.

Is Tarasoff Duty on the TORTS exam?

A fact pattern or short-answer question will usually give you a therapist, a threat, and an identifiable target, then ask whether there is liability for failing to act. Your job is to spot the special relationship, explain the conflict between confidentiality and protection, and state that reasonable protective steps may be required when the risk is serious and foreseeable. If the facts mention a named victim, specific threat, plan, or repeated warning signs, that is your signal to discuss Tarasoff Duty. If the problem asks about negligence or duty, you can use this term to show why the professional may owe more than an ordinary outsider would.

Tarasoff Duty vs Duty to Warn

Duty to Warn is narrower and sounds like a single required response, but Tarasoff Duty can include warning, contacting police, or other reasonable protective action. Many classes use the terms loosely, yet torts problems often want you to notice the broader duty-to-protect idea behind Tarasoff.

Key things to remember about Tarasoff Duty

  • Tarasoff Duty is the tort rule that can require a therapist to protect an identifiable third party from a serious threat made by a patient.

  • The doctrine comes from a special relationship, so it is not the same as an ordinary bystander rule.

  • Confidentiality matters, but it does not always beat the need to prevent foreseeable harm.

  • What counts as a proper response can differ by state and fact pattern, but the law looks for reasonable protective steps.

  • In torts, this term is a classic example of how courts balance privacy, professional judgment, and public safety.

Frequently asked questions about Tarasoff Duty

What is Tarasoff Duty in Torts?

Tarasoff Duty is the rule that may require a mental health professional to take reasonable steps to protect a person who has been seriously threatened by a patient. It comes from the idea that confidentiality has limits when there is a foreseeable risk of violence to an identifiable third party.

Does Tarasoff Duty always mean the therapist has to warn the victim?

Not always. Some people use Tarasoff Duty to mean warning, but the legal duty can be broader and may include contacting police, seeking hospitalization, or taking another reasonable protective step. The exact requirement depends on the state and the facts.

How is Tarasoff Duty different from confidentiality?

Confidentiality protects private therapy communications, while Tarasoff creates an exception when keeping the information secret could lead to serious foreseeable harm. In torts, the conflict between those two duties is often the whole issue.

What kind of facts trigger Tarasoff Duty?

Facts that point to a real, specific, and serious threat matter most, especially when an identifiable person is at risk. A vague angry comment is usually weaker than a detailed threat, repeated warnings, or a plan that makes harm seem foreseeable.

Tarasoff Duty in Torts | Fiveable