Nonlethal

Nonlethal refers to weapons, technologies, or tactical measures intended to incapacitate, deter, or influence behavior without causing death. The term is used in law enforcement, military, and security planning, but it does not guarantee safety: even nonlethal methods can injure or kill under certain conditions. The goal is to reduce lethality and provide options that lessen risk to bystanders and the subjects of force, while still allowing responders to gain compliance or protect themselves.

Nonlethal approaches are applied in crowd control, arrest operations, perimeter defense, and personal protection. They are selected based on environmental factors, the threat level, and the likelihood of collateral harm. Training, policies, and rules of engagement are critical to minimize harm and ensure accountability.

Categories include mechanical devices (net launchers, rubber or foam projectiles), chemical irritants (oleoresin capsicum sprays, tear gas), projectile systems (rubber bullets, beanbag rounds), electrical devices (stun or conducted-energy devices such as Tasers), and acoustic or optical systems (long-range acoustic devices, laser dazzlers). Each type carries specific risks and legal considerations.

Effectiveness varies by context and technique; crowd dynamics, distance, and training influence outcomes. Nonlethal does not mean non-injurious: serious injuries, chronic health effects, and fatalities have occurred. Ethical debate centers on proportionality, consent, and the potential for misuse. Legal frameworks typically require proportionality, necessity, and escalation of force, with oversight and accountability to mitigate harm and protect rights.