Sergeant Kotlinski has been with the Addison Police Department since 1996. He graduated from Elgin Community College with an Associates degree in Criminal Justice and also attended Western Illinois University.
While assigned to the Field Services Division, Sergeant Kotlinski served as a Field Training Officer, Evidence Technician assigned to the Major Crimes Unit and a Juvenile Officer.
Sergeant Kotlinski was assigned to the Investigations Section three times, the first stint being assigned to the DuPage Metropolitan Enforcement Group. The second assignment was at Addison Trail High School as the School Resource Officer and finally being assigned to general investigations.
In June of 2015, he was promoted to Sergeant assigned to the Field Services Division. He is currently assigned as the Traffic Safety Unit and the Crime Free Housing Unit Sergeant.