Lt. Mark Ketchum
Sgt. Ketchum became an officer with the Jacksonville Police Department in 1999. Since then he has became a Traffic Crash Reconstructionist, a Drug Recognition Expert, and a an instructor. He often teaches subjects such as RADAR, SFST, Motor Vehicle Law, and Crash Investigation in the Community College System. The majority of Sgt. Ketchums career has been devoted to traffic safety even to this date as the supervisor of the Jacksonville Police Department Traffic Division.

Jacksonville Police Department BikeSafe Assessors
- Cpl. Tony Frazier
- Regional Coordinator
- Sgt. Phillip Williams
- Site Coordinator
- Lt. Mark Ketchum
- Assessor
- Sgt. James Smallwood III
- Assessor