​Office of the Chief




Chief J. Allan Gilbert

Police Chief J. Allan Gilbert

Major Lewis
Deputy Chief Geoff Lewis joined the Siloam Springs Police Department in 2007 as the Captain of the Criminal Investigation Detachment before being appointed Deputy Chief. Deputy Chief Lewis spent over 20 year on active duty in the United States Marine Corps, retiring in 2002. During his military career Deputy Chief Lewis held a variety of leadership positions including Special Reaction Team Leader, Accident Investigation Chief, Operations Chief, Criminal Investigation Division Chief, Military Special Agent with the Naval Criminal Investigative Service and Chief Instructor of the Physical Evidence Branch, U.S. Army Criminal Investigation School. After leaving the service, Deputy Chief Lewis served as contractor for the Department of Justice (DOJ) International Criminal Investigative Training Assistance Program (ICITAP) in Iraq. Deputy Chief Lewis holds a Baccalaureate of Science in Criminal Justice Administration and is a graduate of the Arkansas Criminal Justice Institute’s, Arkansas Leader Course as well as the Rural Executive Management Institute.
Captain Miller standing in front of the American Flag
Captain Scott Miller is the Patrol Division/ SWAT Commander. He is dedicated to serving the community of Siloam Springs, its citizens, and the men and women of the Siloam Springs Police Department. Captain Miller is a veteran law enforcement officer with over 20 years of service to the City of Siloam Springs. He began his law enforcement career in Grove, Oklahoma in 1999, where he served as a dispatcher/ jailer for Grove Police Department. Since his tenure with the Siloam Springs Police Department, Captain Miller rose through the ranks of Corporal, Sergeant, and Lieutenant and served in many different assignments to include, Patrol Officer, Crime Suppression Unit, Narcotics, Field Training, Training Officer and S.W.A.T. Captain Miller held various positions of leadership including Field Training Coordinator, Narcotics Unit Supervisor, Patrol Supervisor, Criminal Investigations Division Supervisor, and Operations Deputy Division Commander. Captain Miller is certified as a Field Training Officer, Narcotics Officer, SSGT Self-Defense Instructor, and Police Professional Instructor. Captain Miller has been recognized for his outstanding work performance by the Morgan Nick Foundation, American Police Hall of Fame, and the Arkansas Attorney General’s Office.


Captain Spicer standing in front of the American Flag

Captain Derek Spicer joined the Siloam Springs Police Department as a Dispatcher in 1999, before being hired as a Police Officer in 2000. Captain Spicer has served the department in numerous capacities while rising through the ranks including, Field Training Officer, Crime Suppression Unit member and SWAT team member. Captain Spicer was promoted to Corporal in 2002 and served as an assistant shift supervisor, before being promoted to Sergeant in 2007. Captain Spicer served as a shift Sergeant until his transfer to the Criminal Investigations Division in 2009. Captain Spicer served as a Sergeant in the Criminal Investigations Division until 2015 when he transferred to the Training and Intelligence section. Captain Spicer oversaw departmental training and served in numerous intelligence and community outreach capacities until his promotion to Lieutenant in 2016. Captain Spicer transferred back to the Criminal Investigations Division and oversaw its daily operations. Captain Spicer was promoted to Captain in 2018 and currently serves as the Commander of the Special Operations Group, which encompasses the Criminal Investigations Division, School Resource, Community Outreach, Bike Patrol and Public Information. Captain Spicer has received numerous commendations throughout his career with the department that include, Meritorious Service, Humanitarian and Life Saving.