Mark retired as a Lieutenant with 21 years of service with the Virginia Beach, VA Police Department. Mark also retired as a Major with over 26 years of enlisted and commissioned, active and reserve service, with over 18 years as a Special Forces officer. Mark will give his perspectives on PERF’s “30 Guidelines on Police Use of Force.” David Couper is a retired police chief (Madison, Wisc., 1972-91), currently pastor and lecturer in criminal justice. Author of “Arrested Development: A Police Chief Sounds Off…” and the active blog, “Improving Police” on WordPress and a vocal activist for police reform.