Detective Division
Contact:  Lieutenant Erik Magnuson

The Detective Division handles all major crime investigations, to include burglary, arson, assault, robbery, rape, kidnapping and homicide.  The division is also asked to conduct internal investigations into the conduct of Sheriff's Deputies when those alleged incidents warrant it.

The division is led by Lieutenant Erik Magnuson and Detective Sergeant Bob Brockman.  The detectives division has ten detectives and one evidence clerk.  Those personnel also are involved in the following specialized tasks:
  • Metro Drug Task Force - The Sheriff's Office participates in a local anti-drug task force by providing one full time detective to work exclusively in that area.  This detective works with members of other local agencies to provide undercover narcotics investigations in the Tri-City area.
  • Crime Prevention - The Sheriff's Office has a long history of active involvement in the crime prevention effort.  Training classes are offered to the public in residential, business and personal security.  The Sheriff's Office also participates in the local Crime-Stoppers program and supports its efforts to apprehend offenders and curb crime throughout Benton County.
  • Sex Offender Registration - In accordance with Washington State Law, the Sheriff's Office maintains the sex offender registry for Benton County.  A member of the Detective Division is assigned the task of assuring that sex offenders register and maintain current records with the Sheriff's Office.  Use this link to view the current sex offender listing.
  • Polygraph - The Sheriff's Office currently has one certified polygraph operator.  Polygraph examinations are used during the hiring process to help determine the suitability of prospective employees.  It is also used from time to time in criminal investigations.
  • Warrant Detective - A specially trained detective has been assigned to pursue those individuals in the community that have outstanding warrants for their arrest.  This detective works with members of the U.S. Marshal's Service as well as other area police agencies to aggressively seek out and arrest those individuals with warrants for their arrest.
  • Department Training - Each deputy receives a minimum of 60 hours in-service training per year which is twice the 30 hours mandated by Washington State Law.  The training is divided between mandatory classes such as first aid, weapons qualifications and driving safety; and developmental training designed to enhance the deputy's career and improve public service.


    Benton County    620 Market Street    Prosser, Washington 99350
    Phone: (509) 786-5710 or (509) 783-1310
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