Investigations

Detective Derek Cruff has been with the West Fargo Police Department since 2001 and joined the investigations team in 2006. He also is a Firearms Instructor / Armorer. Detective Joe Birrenkott served as patrol sergeant for many years and moved over to investigations in 2007. Detective Birrenkott has served on the West Fargo Police Department since 1981. Detective Ken Zeeb has been with the West Fargo Police Department as a patrol officer since 2003 and joined investigations in 2008. Zeeb has served as a Field Training Officer. Investigations also administer the warrants and registered offender programs. North Dakota Attorney General Sex Offender Web Site Investigations is supervised by Detective Sergeant Greg Warren To contact an investigator call: (701)433-5500. Or the Tipline at: (701)241-5777