​KembaraXtra – Legal Terms – Private Defence


Private defence refers to action taken by a person in the reasonable defence of themselves, their property, or others against unlawful force or interference. In tort law, private defence may be pleaded as a defence to an action arising from acts that would otherwise amount to civil wrongs, such as assault, battery, or trespass. The law recognizes that individuals should not be required to remain passive when faced with unlawful aggression or threats. However, the force used in private defence must generally be proportionate and reasonable in the circumstances. Excessive or unnecessary force may remove the protection of the defence and expose the defendant to liability. The doctrine therefore attempts to balance personal protection with public order and fairness.


The right of private defence extends beyond self-protection and may include defending family members, other persons, and property. For example, a person may lawfully intervene to protect another individual from unlawful violence if the response is reasonable. Similarly, reasonable force may sometimes be used to prevent trespass, theft, or criminal damage to property. Courts assess private defence objectively by considering factors such as the immediacy of the threat, the seriousness of the danger, and the proportionality of the response. The doctrine reflects the principle that the law permits necessary self-protection while discouraging revenge or vigilantism. Private defence therefore plays an important role in both tort law and criminal law as a justification for conduct that would otherwise be unlawful.