Acting Police Chief

August 11, 2026

Dear Chaffey College Community,

I am writing to share an update regarding the leadership of the Chaffey College Police Department.

Following Chief Steve Griffin’s departure from Chaffey College on August 10, 2026, Lieutenant Mike Mason will serve as Acting Chief of Police, effective August 11, 2026. Lt. Mason will provide leadership and oversight of the Police Department during the District’s recruitment and selection process for an Interim Chief of Police.

Lt. Mason is a valued member of our Police Department and brings significant experience and familiarity with our campuses and college community to this role. We appreciate his willingness to step into this important leadership assignment and ensure continuity of operations during this transition.

We will provide additional information regarding the Interim Chief of Police once the selection process is complete.

Thank you,

Henry D. Shannon, Ph.D.
Superintendent/President