# Waymo autonomous vehicle weapon detection incident > Live situation record from CLSTR: https://clstr.news/situations/waymo-autonomous-vehicle-weapon-detection-incident > Updated: 2026-09-14T12:00:37.000Z. Sources: 17. Developments: 2. In early September, a Waymo autonomous vehicle in San Francisco alerted authorities to a violation of service terms involving a weapon. The incident occurred around 4 a.m. on September 3 in the Outer Richmond neighborhood. Following the alert, police conducted a high-risk vehicle stop and recovered a loaded, AR-styled “ghost gun” that lacked a serial number, along with suspected marijuana and mace spray. Two juvenile passengers, a boy and a girl, were taken into custody and booked into the San Francisco Juvenile Justice Center. The incident has prompted discussions regarding the use of interior cameras by autonomous vehicle companies to monitor passenger behavior and the privacy implications of such technology. Waymo utilizes these interior cameras to monitor rides, ensure safety, and verify compliance with in-car rules; the company’s support team can review footage or, in urgent circumstances, access live video during a trip. This event follows a similar incident in San Mateo two months prior, where Waymo remotely intervened to stop a vehicle carrying teenagers with alcohol and toy weapons. ## Timeline ### 2026-09-14: Waymo robotaxi alerts police to armed juveniles in San Francisco A Waymo autonomous taxi in San Francisco alerted police to two juveniles carrying a loaded ‘ghost gun’ and drugs, leading to their arrest after the vehicle pulled over following a terms-of-service violation. 8 sources. https://clstr.news/cluster/waymo-robotaxi-alerts-police-to-weapon-in-san-francisco ### 2026-09-12: Waymo alerts police to illegal firearm in autonomous vehicle Two minors were arrested in San Francisco after a Waymo robotaxi detected a firearm violation, leading to the recovery of a loaded AR-style “ghost gun,” marijuana, and mace spray. 9 sources. https://clstr.news/cluster/waymo-alerts-police-to-illegal-firearm-in-autonomous-vehicle --- Cite as: Waymo autonomous vehicle weapon detection incident. CLSTR, https://clstr.news/situations/waymo-autonomous-vehicle-weapon-detection-incident