The MIU (Major Investigation Unit) was formed in the spring of 2002 as a cooperative effort between the City of Delafield, Village of Hartland and Village of Chenequa Police Departments. The purpose of this unit's formation is to provide a resource member departments could utilize in case of a significant investigation which could otherwise overwhelm their individual abilities to conduct it. Since its inception, it has been used successfully in a large burglary, several suspicious sudden death investigations and a homicide.
Members
Originally, each department was to contribute to a shared joint budget and 4 officers who would develop skills in four different areas: investigator, evidence technician, accident reconstruction and photography. Delafield added 2additional members in 2002, with plans to add other specialists in the future.