Lieutenant Olsen was appointed as a Police Officer in the Larchmont Police Department in August 2001, and was promoted to the rank of Sergeant in September 2008. As a Sergeant he served as a patrol supervisor and SWAT Team Leader.
In December 2011 he was promoted to the rank of Detective Sergeant, and supervised the activities of the Detective Division.
In June 2012 he was promoted to the rank of Lieutenant and served as the Department’s Administrative Officer. He currently serves as the Patrol Commander
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