Vicarious Liability

Vicarious liability is a form of secondary or indirect liability in which one person or entity is held legally answerable for the tortious or unlawful conduct of another, even though the responsible party did not personally commit the wrongful act. The doctrine rests on the policy logic that those who derive benefit from another's activity, and who have the power to control or supervise it, should also bear the risks it creates.

The classic application is the employer–employee relationship, often expressed through the Latin maxim respondeat superior ("let the master answer"). For an employer to be held vicariously liable, the wrongful act generally must occur within the course and scope of employment. Independent contractors, by contrast, typically do not trigger vicarious liability for the principal, though exceptions exist for non-delegable duties and inherently dangerous activities.

Vicarious liability also appears in other relationships:

• Principal and agent in commercial and contract law.
• Partners in a partnership for acts done in the ordinary course of business.
• Parents for children in some civil-law jurisdictions, though common-law systems generally limit this.
• States for the conduct of their organs under international law (see Article 4 of the International Law Commission's 2001 Articles on Responsibility of States for Internationally Wrongful Acts).

In international and human rights law, the concept overlaps with doctrines of command responsibility and state responsibility, though those frameworks have distinct elements. Command responsibility, codified in Article 28 of the Rome Statute of the International Criminal Court, holds military commanders criminally liable for crimes committed by subordinates they failed to prevent or punish—a stricter, fault-based variant rather than pure vicarious liability.

Vicarious liability is generally a strict form of liability: the claimant need not prove the employer was personally negligent, only that the relationship and the connection to the wrongful act exist. It is distinct from direct liability, where the defendant is sued for their own breach of duty (such as negligent hiring or supervision).