Darren McKernan has been sworn in as patrol sergeant with the Elk River Police Department.
Mayor John Dietz administered the oath of office at the Monday, March 7 city council meeting.
McKernan was appointed to the position Feb. 21.
He joined the police department as a community service officer in 1999 and was promoted to patrol officer in 2000, according to Police Chief Brad Rolfe.
He has a bachelor’s degree from Concordia University and an associate’s degree from Alexandria Technical College.
He is a department peer counselor, SWAT and bike team member and reserve unit coordinator. For the last five years McKernan has been a juvenile detective and school liaison officer.
He was chosen as sergeant over nine other internal candidates.
This is the latest in a series of police department promotions set into motion with the retirement of Police Chief Jeff Beahen in November.
McKernan replaces Ron Nierenhausen, who was promoted to captain after Rolfe was named chief.