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Deputy Chief of Police - Field Operations: Raymond Mikolasek began his law enforcement career in 2004 as a Patrol Officer with the Yorkville Police Department. Deputy Chief Mikolasek served one year as a School Resource Officer at Yorkville High school during the 2010-11 school year before he was promoted to Patrol Sergeant in 2011. Deputy Chief Mikolasek served as a Patrol Sergeant until 2013 when he was assigned to the position of Detective Sergeant from 2013 to 2018. Deputy Chief Mikolasek was promoted to his current position in July 2018. During his career, Deputy Chief Mikolasek has served as a firearms and tactics instructor for the Yorkville Police Department. Deputy Chief Mikolasek has also served on the Kendall County Major Crimes Task Force (2014-2020) and the Kendall County Special Response Team (2005-2018), where he served as Team Commander (2011-2018).