Investigations Division

  1. About us
  2. General Investigations
  3. Computer Forensic Services
  4. Human Trafficking
  5. Welfare Fraud
  6. Drug Task Force

Responsibilities

The Washington County Sheriff’s Office Investigative Division primarily investigates felony level crimes in all areas that utilize the Sheriff’s Office as their law enforcement agency, and also provide assistance to partnering agencies throughout Washington County.

The Washington County Sheriff’s Office strives to provide high-quality law enforcement services to the public we serve. While each crime that is reported is evaluated thoroughly for evidence and solvability factors, not every crime reported is assigned to a detective.Detectives working in the Investigations Division are assigned cases through a variety of means; such as calls from patrol, direct calls to scenes, referrals from other law enforcement agencies or community services, and through assignment by the detective sergeant or division commander.

In 2017, 1,943 cases were assigned to the Investigations Division, with 1,671 classified as cleared. Clearance rates are based upon the total number of cases which fall into the classifications of "cleared", "exceptionally cleared"; and "unfounded"; compared to the total number of cases assigned. The result is an overall clearance rate of 86% of all assigned cases.

Contact Us

  1. Investigations Division Commander


    Commander Sara Halverson
    Phone: 651-430-7871
    Email: sara.halverson@co.washington.mn.us

    Investigations Division Sergeants



    Sergeant Joe Stoehr
    Phone: 651-430-7887
    Email: joseph.stoehr@co.washington.mn.us

    Sergeant Mike Pearson
    Phone: 651-430-7893
    Email: michael.pearson@co.washington.mn.us

    Call Us


    651-430-7800
    651-430-7803 (fax)

    Mailing address


    Washington County Sheriff's Office
    Attn: Investigations Division
    15015 62nd St N
    Stillwater, MN 55082

    Email Address


    Sheriff@co.washington.mn.us

    Tip Lines


    (If there is immediate danger to life-call 911)
    Investigations:651-430-7850
    Welfare Fraud: 651-430-7876 
    Human Trafficking: 651-430-7825