Cause of action

In the law, a cause of action is a set of facts sufficient to justify a right to sue to obtain money, property, or the enforcement of a right against another party. The term also refers to the legal theory upon which a plaintiff brings suit (such as breach of contract, battery, or false imprisonment). The legal document which carries a claim is often called a Statement of Claim in English law, or a Complaint in U.S. federal practice and in many U.S. states. It can be any communication notifying the party to whom it is addressed of an alleged fault which resulted in damages, often expressed in amount of money the receiving party should pay/reimburse.

To pursue a cause of action, a plaintiff pleads or alleges facts in a complaint, the pleading that initiates a lawsuit. A cause of action generally encompasses both the legal theory (the legal wrong the plaintiff claims to have suffered) and the remedy (the relief a court is asked to grant). Often the facts or circumstances that entitle a person to seek judicial relief may create multiple causes of action. Although it is fairly straightforward to file a Statement of Claim in most jurisdictions, if it is not done properly, then the filing party may lose his case due to simple technicalities.

There are a number of specific causes of action, including: contract-based actions; statutory causes of action; torts such as assault, battery, invasion of privacy, fraud, slander, negligence, intentional infliction of emotional distress; and suits in equity such as unjust enrichment and quantum meruit.

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