Concord High School Placed In Lockdown After Former Student Found Inside Building

The school was placed on lockdown after a former student, who now attends another school, was seen inside the building on Thursday morning.

By Tony Schinella, Patch Staff

May 14, 2026 9:01 am EDT

Concord High School was on lockdown for around 25 minutes after an intruder was reported inside the school on May 14. (Tony Schinella/Patch)

CONCORD, NH — Concord High School was placed on lockdown Thursday morning after reports a former student was inside the school.

Police sent several officers to the school to assist its resource officer just before 8 a.m. after a report from the principal. At just after 8 a.m., Tim Herbert, the superintendent of SAU 8, notified parents the school was in lockdown after “an individual from another school, who does not belong on the CHS campus, was seen in the school.” He said the school was first placed in a secure campus and then put on lockdown.

“Concord High School administration is working closely with the Concord Police Department to locate this individual and ensure they leave campus,” he said, “The safety of our students and staff remains our highest priority.”

Later, officers said a teacher walked the former student to the school’s office, with one officer saying they believed it might be a misunderstanding, since the student attended online classes last year. The former student left the school later. The lockdown was lifted just after 8:15 a.m.

“The person was cooperative and has since left campus,” Herbert said. “There is no ongoing safety concern.”

After identifying the student, dispatch said there might be an active restraining order against them from another student at the school, according to scanner chatter. That student, having seen the alert, was now afraid of going to school. It is unknown, at publication time, how she knew the former student was at the school. Officers at the school said the person had already left and did not have their exact birthdate to confirm the restraining order.

Concord NH Patch will update this post when and if more information becomes available.

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