Legis
Law enforcement
SB 937, Chapter 754, Statutes of 2026 · Tuesday 29 September 2026

Law enforcement: flash-bang grenades and explosive breaching charges

SB 937 restricts police use of flash-bang grenades at crowds and in immigration enforcement, and bars explosive breaching charges for most immigration enforcement.

The law extends California’s crowd-control safeguards and public reporting requirements to flash-bang grenades. It also limits explosive tactics during immigration enforcement while preserving specified task-force and legal exceptions.

What the law does ​

  • Bars law enforcement from using flash-bang grenades to disperse assemblies, protests, or demonstrations except under specified crowd-control conditions.
  • Requires trained officers, attempted de-escalation when reasonable, warnings and time to leave when reasonable, targeted and proportional use, bystander protections, and medical aid when safe.
  • Prohibits aiming flash-bang grenades at people’s heads, necks, or vital organs, and bars their use solely for curfew violations, verbal threats, or noncompliance with police directives.
  • Requires a commanding officer at the scene to authorize flash-bang grenade use at an assembly, protest, or demonstration.
  • Prohibits flash-bang grenades and explosive breaching charges for immigration enforcement, except in specified joint task forces or circumstances allowed under existing law.
  • Requires agencies to post crowd-control flash-bang-use reports within 60 days, or up to 90 days for just cause, and requires the Department of Justice to link to those reports.

Who it affects ​

  • State, local, special-district, and federal law enforcement agencies and their peace officers.
  • People at assemblies, protests, demonstrations, and other crowd-control incidents.
  • People subject to immigration-enforcement operations.