Contact Lt. Colonel Gregory
St. Louis County Police Department
7900 Forsyth Blvd. 
Clayton, MO 63105
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Colonel Gregory is the Chief of the St. Louis County Police Department and is oversees staff inspections, the Bureau of Research and Analysis, Municipal Services and the Bureau of Internal Affairs. 

Before being promoted to Chief in 2020,  Col. Gregory served as the Deputy Chief of Police.

He previously served as the Commander of the Division of Criminal Investigations.  In this position, he was responsible for the overall operation of all investigative units of the St. Louis County Police Department, including Crime Scene Investigations, Drug Enforcement, Crimes Against Persons and Crimes Against Property, Computer and Financial Fraud, Family Crimes and the Crime Laboratory.

Lt. Colonel Gregory serves in a number of different capacities for the County Police including membership on the County Police Training Committee and the Chief's Board for hirees. He is a member of the Law Enforcement Officials and the St. Louis County Police Association, an associate member of St. Louis Area Police Chiefs.  Lt. Colonel Gregory is also a member and of NOBLE (National Organization of Black Law enforcement Executives). He is also an Assessor for CALEA (Commission on Accreditation for Law Enforcement Agencies).

Lt. Colonel Gregory began his career with the St. Louis County Police on December 2, 1979 when he was hired as recruit and later assigned to the North County Precinct after graduation. He worked as a patrolman there for ten years. In December of 1989, he was assigned to the West County Precinct - including service in the cities of Wellston and Kinloch. In April of 1995, Gregory was assigned to the Municipal Services Unit in the Chief's office where he assisted with municipal contracting until he was promoted to Sergeant in June 1995. After promotion, Gregory was assigned to the North County Precinct as a supervisor until he was assigned to the Tactical Operations Unit as supervisor in November of 1995. Lt. Colonel Gregory served in that position for two years until he was promoted to the rank of Lieutenant in January of 1998. He was then assigned to the West County Precinct as a Watch Commander and six months later, transferred to the North County Precinct as Watch Commander. During this assignment, he served as Acting Commander of the North County Precinct for ten weeks and as Acting Commander of the City of Berkeley Police Department for two weeks. In July of 2001, Gregory was promoted to the rank of Captain and assigned to the St. Louis County and Municipal Police Academy. He was promoted to Lt. Colonel and assigned to the Division of Special Operations in June 2009. He was assigned to command the Division of Patrol in May of 2012.

Lt. Colonel Kenneth Gregory was born in Edenton, North Carolina but moved to St. Louis at a young age and was raised in the city of St. Louis, Missouri. He currently resides in the city of Florissant, Missouri with his wife. He has a Bachelor of Science Degree in Education from the University of Missouri-Columbia and is a graduate of the 218th Session of the FBI National Academy. He has received one Meritorious Service Citation, five Chief's Commendations, and five Awards of Excellence.