The Investigations Division is comprised of sworn law enforcement officers, whose basic duty is to "serve and protect" (protection of persons and property), along with the enforcement of federal, state and local laws. Within the framework of the Sheriff's Department, the Investigations Division is responsible for conducting criminal investigations within the jurisdiction of the Marathon County Sheriff's Department.
Encompassed within the realm of the Investigations Division are the entities of General Investigations , Juvenile/Sensitive Crimes Unit , Special Investigations Unit , Evidence Technician , Warrant/Identification Unit and the Civil Process Unit .
In general, the duties of detectives assigned to the Investigations Division include but are not limited to:
• Conducting criminal investigations of major crimes
• Conducting follow-up investigations of cases referred by the Patrol Division
• Conduct background investigations for prospective employees of the sheriff's department
• Processing and documenting crime scenes and searching for evidence
• Executing search warrants
• Arresting offenders
• Assisting other law enforcement agencies within Marathon County requesting assistance in the investigation of major crimes that may occur within their jurisdiction
General Investigations Unit
The General Investigations unit is comprised of 3 detectives (and a 4 th who conducts General Investigations approximately 50% of the time). The General Investigations Unit's function primarily focuses on Crimes against Persons and Property Crimes involving adult offenders.
The specific duties of the detectives assigned to the General Investigations Unit include but are not limited to:
• Conduct criminal investigations of major crimes that occur within the jurisdiction of the Marathon County Sheriff's Department, including (but not limited to):
• Homicides and other death investigations
• Bank robberies
• Armed robberies
• Hostage situations
• Conducting investigations of crimes occurring in the Marathon County Jail
• Conducting internal and/or specialized investigations for other law enforcement agencies upon their request
• Establishing and maintaining effect liaison with other criminal investigative agencies, such as:
• Local law enforcement agencies
• District Attorney's office
• Medical Examiner's office
• Wisconsin State Crime Laboratory
• Wisconsin Department of Justice
• Federal Bureau of Investigation (FBI)
• Provide backup and support for the Juvenile/Sensitive Crimes Unit, the Special Investigations Unit, the Civil Process Unit, and the Warrant/Identification Unit
Juvenile/Sensitive Crimes Unit
The Juvenile/Sensitive Crimes Unit is comprised of 3 detectives (and a 4 th who conducts Juvenile/Sensitive Crimes investigations approximately 50% of the time). The unit's function primarily focuses on crimes in which juveniles are identified as a victim or an offender as well as any sensitive crimes.
Most of the sensitive crimes (child abuse/neglect cases, sex crimes and elder abuse) are investigated via a joint effort and team approach with investigative social workers from the Marathon County Department of Social Services. The investigations focus on the protection and welfare of the victims, as well as the identification and prosecution of the offenders.
The specific duties of the detectives assigned to the Juvenile/Sensitive Crimes Unit include but are not limited to:
• Conducting follow-up investigations on cases referred from the Patrol Division
• Conducting investigations of the following:
• Child abuse/neglect
• Sexual Assault (adult & juvenile)
• Elder abuse
• Juvenile offenses
• Truancy (child offenders as well as "contributing adult" offenders)
• Crimes occurring in the Juvenile Facility
• Providing backup and support for the General Investigations Unit, the Special Investigations Unit, the Civil Process Unit, and the Warrant/Identification Unit
Special Investigations Unit
The Special Investigations Unit is a multi-agency team comprised of investigators from the Marathon County Sheriff's Department, Wausau Police Department, and the Everest Metropolitan Police Department. The primary function of the unit is the investigation of controlled substance crimes within Marathon County .
The unit also has the following duties:
• Lead agency in a multi-jurisdictional (Central Agency Drug Enforcement Group - CEADEG) narcotics task force, which includes all police agencies within Marathon County
• Lead agency in a multi-jurisdictional Methamphetamine regional task force
• Provides assistance to counties surrounding Marathon County
• Provides personnel to the Wisconsin CLEAR team (conducts clandestine laboratory investigations)
• Provides community-based training
The Evidence Technician entity is comprised of 1 detective (another detective serves as a back-up technician) and is assisted by occasional part-time staff. The duties of the Evidence Technician include but are not limited to:
• Control the intake, processing and disposal of property/evidence in possession of the Marathon County Sheriff's Department
• Respond to and process crime scenes for evidence
• Process evidence at the scene and in a laboratory for trace evidence, various prints and DNA
• Assist other law enforcement agencies with the processing of crimes scenes and evidence
• Coordinate the processing of evidence with the State Crime Laboratories in Wausau & Madison
The Warrant/Identification Unit is comprised of 2 plain-clothes deputies whose primary function is the management of the Marathon County Sheriff's Department warrant files and records, and the transportation of inmates.
The transportation of prisoners generally includes:
• Picking up prisoners who were arrested on Marathon County warrants in other counties
• Delivering inmates to state correctional facilities
• Picking up (on writs) prisoners from the state prison system
• Transporting persons pursuant to alcoholic and mental health petitions (county facilities)
• Transporting inmates to and from mental health evaluations (state facilities such as Winnebago and Mendota)
Civil Process Unit
The Civil Process Unit is comprised of 2 plain-clothes deputies whose primary function is the service of civil process. Civil process is defined as "the writ or mandate that serves as the means used for brining a defendant to court to answer in an action or proceeding, civil or criminal." In a broader sense, any writ, order, notice, summons, or other writing, by which a court exercises its jurisdiction over the parties or subject matter of any action or proceeding, is called a process.
The specific duties of officers assigned to the Civil Process Unit include but are not limited to:
• The service of civil process
• Restraining Orders
• Conduct "Sheriff's Sales"
• Serve executions
• Serve writs
• Handle the immobilization or seizure of vehicles as ordered by the court