Meet Our Experts

Jonathyn “Jon” Priest is a thirty-one-year veteran of the Denver Police Department in
Colorado. He has more than 27 years of experience investigating thousands of violent
criminal incidents as a detective, supervisor, and command officer.

He is a court-recognized expert in Colorado District Courts and U.S. Federal Courts in
bloodstain pattern interpretation, crime scene and shooting incident reconstruction,
death investigation, and major case management. In addition to criminal testimony, he
also testifies and consults in civil cases involving death investigation and major case
management.

He has extensive background in death investigation and officer-involved critical incident
investigation. Jon developed the Denver Police Department’s investigation protocol and
training curriculum covering death investigation, officer-involved critical incidents, and
interview and interrogation. He also has extensive experience documenting criminal
incidents on video. He trains law enforcement officers at the state and national levels in
these disciplines. He regularly consults with the District Attorney for the Second Judicial
District and the Denver City Attorney on criminal investigations.

He is a member of the following professional organizations.
 Association for Crime Scene Reconstruction (ACSR)
 International Association of Blood Stain Pattern Analysts (IABPA)
 International Association for Identification (IAI)
 Rocky Mountain Association of Bloodstain Pattern Analysts (RMABPA)
 International Homicide Investigators Association (IHIA)
 The American College of Forensic Examiners (ACFEI)

He is certified by the International Association for Identification (IAI) as a Bloodstain Pattern
Examiner (CBPE) and by the American College of Forensic Examiners (ACFEI) as a medical
investigator (CMI-III). He is also a board member of the Association for Crime Scene
Reconstruction (ACSR).