Report: Cal High Lockdown — On Monday, a potential threat of violence triggered a rapid and coordinated law enforcement response at California High School in San Ramon, California. The San Ramon Police Department (SRPD) took swift action following a threatening phone call, ensuring the safety of students, staff, and campus visitors through a heightened security protocol.
The incident began at approximately 12:26 p.m., when the San Ramon Valley 911 Communications Center received a transferred call from a male individual issuing a threat directed at California High School, located at 9870 Broadmoor Drive. In response, law enforcement immediately implemented a “secure” status across the campus — a precautionary measure that differs from a full lockdown. Under a secure status, students and staff remained inside classrooms with doors locked while normal activities continued, indicating that no immediate internal threat had been detected.
A San Ramon School Resource Officer who was already on site acted without delay, quickly joined by additional SRPD officers who assumed strategic positions around the school. The rapid deployment ensured that all areas of the campus were monitored closely for any unusual activity. In a further demonstration of preparedness, the police deployed drones to conduct aerial surveillance of the school grounds and nearby areas. This allowed officers to perform a thorough search while minimizing risk to personnel on the ground.
By 1:25 p.m., officers completed their search of the campus, including classrooms, parking lots, and surrounding facilities. The drone team reported no sightings of suspicious individuals, weapons, or objects that would indicate any real or immediate danger. With no credible threat found, the secure status was lifted and normal school operations resumed.
Despite the lack of evidence pointing to a real threat, SRPD maintained a visible presence on campus for the remainder of the school day. This continued presence was intended to provide reassurance to students, faculty, and parents, as well as to deter any potential follow-up incidents.
As of now, the source of the threatening call has not been identified, and the investigation remains active. Authorities have confirmed that no arrests have been made and no injuries were reported during the event. The police department continues to encourage anyone with information to come forward to aid in the ongoing investigation.
The San Ramon Police Department praised the calm and efficient response of California High School’s staff and students, commending their adherence to established safety protocols. Their cooperation played a key role in the smooth handling of what could have been a serious emergency.
This event serves as a reminder of the importance of emergency preparedness and the effectiveness of rapid response measures. Further updates will be provided as the investigation progresses.