A stand-your-ground law (sometimes called "line in the sand" or "no duty to retreat" law) establishes a right by which a person may defend one's self or others (right of self-defense) against threats or perceived threats, even to the point of applying lethal force, regardless of whether safely retreating from the situation might have been possible. Such a law typically states that an individual has no duty to retreat from any place where they have a lawful right to be (though this varies from state to state) and that they may use any level of force if they reasonably believe the threat rises to the level of being an imminent and immediate threat of serious bodily harm and/or death.