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 laboratory is accredited by ANSI National Accreditation Board (ANAB), and has been continuously accredited since 1999. The laboratory currently provides the following accredited examinations:

  • Biology
    • Body Fluid Identification
    • DNA - Nuclear
    • Individual Characteristic Database (NDIS)
  • Bloodstain Pattern Analysis
    • Pattern Classification
    • Area of Convergence/Origin Determination
    • Reconstruction
  • Crime Scene Investigation
    • General Crime Scene Investigation
    • Crime Scene Reconstruction
    • Trajectory Determination
  • Digital and Multimedia Evidence
    • Video Analysis
    • Computer Forensics
  • Firearms/Toolmarks
    • Distance Determination
    • Firearms
    • Individual Characteristic Database (NIBIN)
    • Toolmarks
    • Serial Number Restoration
  • Fire Debris
  • Impression Evidence (Footwear/Tire Track)
  • Latent Prints
    • Latent Print Processing
    • Latent Print Comparisons
    • Individual Characteristic Database (NGI)     
  • Seized Drugs
  • Trace Evidence
    • Fibers and Textiles
    • Fractured Item
    • General Unknown
    • Glass
    • Hair (classification only)
    • Paint
    • Tape
  • Toxicology (Ante-Mortem Testing)
    • Blood Alcohol (Quantitative)
    • Urine Drug (Qualitative) 



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]