Self-defense laws allow individuals to protect themselves from harm when they believe they are in imminent danger. These laws vary by jurisdiction but generally permit the use of reasonable force to prevent an attack. The key factors often considered include the level of threat, the proportionality of the response, and whether the person had a chance to retreat safely. In many places, self-defense is justified only if the person facing the threat did not provoke the attack. Additionally, some regions have "stand your ground" laws, which eliminate the duty to retreat before using force. Understanding these laws is crucial for anyone concerned about personal safety.