Criminalistics Laboratory

     Success through Partnership - Excellence through Professionalism - Truth through Science


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 
[email protected]

The crime laboratory is accredited by ANSI-ASQ National Accreditation Board (ANAB) doing business as the American Society of Crime Laboratory Directors/Laboratory Accreditation Board (ASCLD/LAB), and has been continuously accredited since 1999. The laboratory currently provides accredited examinations in the following disciplines:

  • Biology
    • Body Fluid Identification
    • DNA - Nuclear
  • Drug Chemistry
    • Controlled Substances
  • Crime Scene Investigation
    • General Crime Scene Investigation
    • Crime Scene Reconstruction
    • Bloodstain Pattern Interpretation
  • Digital & Multimedia Evidence
    • Video Analysis
    • Computer Forensics
  • Firearms/Toolmarks
    • Firearms
    • Toolmark
    • Serial Number Restoration
  • Latent Prints
    • Latent Print Processing
    • Latent Print Comparisons
    • Impression Evidence (Footwear/Tire Track)
  • Toxicology
    • Human Performance Forensic Toxicology
      (blood alcohol only)
  • Trace Evidence
    • Paint
    • Fibers and Textiles
    • Glass
    • Hair
    • Fire Debris
    • General Physical and Chemical Analysis


Photo credit: 

Criminalistics Laboratory Contacts

Director Capps in Uniform Ross Capps
Laboratory Director
[email protected]
Assistant Lab Director David Wright David Wright
Assistant Lab Director
[email protected]