Whoever is compelled to commit an act in order to defend his own or another person's right against an imminent danger arising from an unlawful attack, if the act is reasonably committed under the circumstances, such act is a lawful defense, and the person shall not be guilty of an offence.
Section 68 is Thailand's self-defense provision, one of the most frequently invoked defenses in criminal cases. It provides that an act done to defend oneself or another against imminent unlawful danger is not punishable if done within reasonable limits.
This provision draws from both civil law and common law traditions of self-defense. The Supreme Court has developed extensive case law defining 'reasonable limits' and 'imminent danger'.
The key test is proportionality: the defensive force must be reasonable relative to the threat. Excessive force beyond reasonable limits may still be mitigated under Section 69 if done out of excitement, fear, or panic.
The defendant was attacked and used excessive force in repelling the attack, causing the death of the attacker. The Supreme Court found that the defendant acted in self-defense but exceeded what was reasonably necessary under the circumstances, constituting excessive self-defense under Section 69. Under this provision, the defendant remains criminally liable for the resulting harm but the court has discretion to reduce the punishment. The Court reduced the sentence, noting that the defendant acted out of genuine fear and in response to a real threat, though the defensive response went beyond what was proportionate to the danger faced.
The defendant, a bystander, intervened when he witnessed an attacker assaulting a third party with a weapon. The defendant struck the attacker, causing injury. The Supreme Court held that the right of self-defense under Section 68 extends to the defense of other persons. A bystander who witnesses an unlawful assault in progress may use reasonable force to protect the victim. The same principles of proportionality and necessity apply as in self-defense of one's own person. The defendant was acquitted, the Court finding that intervening to protect another from an ongoing violent attack constitutes lawful defense of others under Section 68.
The Supreme Court held that a self-defense claim under Section 68 is unavailable when the threat originates from a person acting lawfully. Where a police officer lawfully performs a duty to apprehend a suspect, the defendant cannot invoke self-defense to justify shooting the officer. Section 68 only applies against unlawful threats.
