In modern U.S. usage, forfeiture is deprivation or destruction of a right in consequence of the non-performance of some obligation or condition.[1] It can be accidental, and therefore is distinguished from waiver. In the law of England and Wales, the forfeiture rule is the rule of law which prevents a killer from inheriting the estate of a person they have unlawfully killed.[2] The term also refers to the rule in English law under which an insured person who makes a fraudulent insurance claim loses their claim: this rule was derived from common law until the passage of the Insurance Act 2015, which "puts the common law rule of forfeiture on a statutory footing".[3]