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The mission of the Johnson County Sheriff’s Office Criminalistics Laboratory is to aid in criminal
investigations through timely, unbiased, high quality forensic services performed by highly
trained experts using state-of the art instrumentation and scientific techniques.

Crime Lab

Johnson County Sheriff’s Office
Criminalistics Laboratory
11890 S Sunset Drive
Olathe, Kansas 66061
Phone: (913) 826-3209 Fax: (913) 826-3286

The crime laboratory is accredited by the American Society of Crime Laboratory Directors/Laboratory Accreditation Board (ASCLD/LAB)  since 1999. The laboratory is currently accredited under the ASCLD/LAB-International program, and provides accredited examinations in the following disciplines:

  • Biology
    • Serology
    • DNA - Nuclear and YSTR
  • Controlled Substances
  • Crime Scene Investigation
    • General Crime Scene Investigation
    • Crime Scene Reconstruction
    • Bloodstain Pattern Interpretation
  • Digital & Multimedia Evidence
    • Video Analysis
  • Firearm & Toolmark
  • Serial Number Restoration
    • Latent Prints
      • Latent Print Processing
      • Latent Pring Comparisons
    • Impression Evidence (Footwear/Tire Track)
    • Trace Evidence
      • Paint
      • Fibers and Textiles
      • Glass
      • Hair
      • Fire Debris
      • General Physical and Chemical Analysis

    Recent Updates:

    December 20, 2013: Beginning January 1st, 2014, Controlled Substance, Toxicology and Firearm reports will include measurement uncertainty values when drug weight, blood alcohol concentration or firearm length values are reported. Per our accrediting body, we are required to begin calculating and providing measurement uncertainty for these reported values. At this time, no other laboratory reports will be affected.  See the formal announcement for additional information.

    Photo credit:

    Gary Howell  Gary Howell
    Laboratory Director
    Allan Hamm Allen Hamm
    Assistant Laboratory Director
    Last updated: 1/28/2014 10:57:14 AM