Colorado Student Arrested for Bringing Gun to High School

17-year-old male student faces charges for alleged concealed weapon on Arapahoe Ridge High School campus

Published on Mar. 5, 2026

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A student has been arrested and accused of bringing a gun to Arapahoe Ridge High School in Boulder, Colorado. According to the Boulder Valley School District, the alleged incident happened on Tuesday when a student told a staff member that a classmate had brought a gun on campus. The student claimed the gun was concealed on the student. Investigators said the student was located, but a search was not conducted because the student left the campus. The high school is located at 6600 E. Arapahoe Road in Boulder.

Why it matters

This incident raises concerns about school safety and the presence of firearms on school grounds, which can pose a serious threat to students, staff, and the broader community. It also highlights the importance of reporting suspicious behavior and the need for effective security measures to prevent such incidents.

The details

According to the Boulder Valley School District, staff followed the student off campus and informed law enforcement, who then responded. Out of an abundance of caution, additional security personnel were brought to the school, as well as law enforcement, which allowed for close monitoring of the campus for the remainder of the day. The 17-year-old male student is facing charges of unlawful possession of a weapon on school grounds, unlawfully carrying a concealed weapon, and possession of a handgun by a juvenile.

  • The alleged incident happened on Tuesday, March 5, 2026.

The players

Arapahoe Ridge High School

A high school located at 6600 E. Arapahoe Road in Boulder, Colorado.

Boulder Valley School District

The school district that oversees Arapahoe Ridge High School and responded to the alleged incident.

17-year-old male student

The student who was arrested and accused of bringing a gun to Arapahoe Ridge High School.

Boulder Police Department

The law enforcement agency that responded to the incident and is investigating the case.

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What’s next

The judge will determine the student's bail and whether they will be allowed to return to school pending the outcome of the case.

The takeaway

This incident highlights the ongoing challenges schools face in maintaining a safe and secure environment for students and staff, and the need for continued vigilance and effective security measures to prevent such incidents from occurring.