top of page

Kirk Garrison, Criminalist

Education
  • Bachelor of Science in Biology, Clarke University | 2010

Training
  • American Society of Crime Laboratory Directors Leadership Academy Level 1
    Hybrid – 12 online sessions with 3-day capstone in Olathe, KS
    48 Hours – September – December 2025

  • Advanced Expert Witnessing for Forensic Laboratory Scientists
    Highland, CA
    2 days - October 2025

  • Forensic Technical Assessor Training
    Instructor-led remote course
    July 15-18, 2025

  • Association of Firearms & Toolmarks 2025 Conference
    Anaheim, CA
    5 days – May 2025

  • NIBIN Authorized Trainer Course
    Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF)
    San Bernardino, CA (online)
    2.5 days – August 2023

  • Association of Firearms & Toolmarks 2023 Conference
    Austin, TX
    6 days – May 2023

  • Basic Station Armorer Course
    Frank Bland Training Center - San Bernardino, CA
    10 hours- September 2022

  • Association of Firearms & Toolmarks 2022 Conference
    Atlanta, GA
    6 days – May/June 2022

  • California Association of Criminalist – 136th Seminar
    Long Beach, CA
    3 days- April 2022

  • Modern Firearm Manufacturing Techniques Course
    Connecticut, Massachusetts & New Hampshire
    10 days – September 2021

  • Association of Firearms & Toolmarks 2021 Conference
    Miami, FL
    48 hours – August 2021

  • Statistical Thinking for Forensic Practitioners Short Course 
    Online Course – Sponsored by CSAFE
    6 hours – March/April 2021

  • Integrated Ballistic Identification System – Matchpoint
    Ultra Forensics – Online Course
    San Bernardino, CA
    3 days – October 2020

  • SHOT (Shooting Hunting Outdoor Trade) Show
    Las Vegas, NV
    January 2020, 2023, 2024, 2025

  • Glock Armorer’s Course
    Corona, CA
    8 hours – December 2019

  • Integrated Ballistic Identification System – Data Acquisition
    Huntsville, AL
    32 hours – October 2019

  • California Association of Criminalists Fall 2019 Conference
    3D Technology, Analysis and Statistics for Firearm/Toolmark Examinations
    Measurement Uncertainty
    Advanced Forensic Evidence in a Hazardous Environment
    Ontario, CA
    October 2019

  • Assault Weapons Identification and New and Upcoming CA Gun Laws
    LA HIDTA – Pete Tuttle
    Commerce, CA 
    3 hours – October 2019    
    Basic Station Armorer Course
    Frank Bland Regional Training Center, San Bernardino County Sheriff’s Department
    4 hours – September 2019

  • Advanced Reconstruction and Major Scene Logistics
    National Crime Investigation and Training – Joe Rynearson
    Hosted by Ontario Police Department
    50 hours – August 2018

  • International Association for Identification Educational Conference
    Evidence Detection across the Spectrum: Using Forensic Light Sources from 254nm to >1000nm -2 hours
    Trajectory of Vehicles: Rods, Strings and Lasers – 4 hours
    Examination of Bloodstains and Bloodstain Patterns on Clothing – 5 hours
    Atlanta, GA
    40 hours – August 2017

  • FARO 3D Scanning and software
    Scientific Investigations Division, San Bernardino County Sheriff’s Department
    16 hours – June 2017

  • Bloodstain Pattern Analysis
    Scientific Investigations Division, San Bernardino County Sheriff’s Department
    40 hours – May 2017

  • Advanced Crime Scene Investigation 
    Frank Bland Training Center - San Bernardino, CA
    40 hours – November 2015

  • Coroner Gravesite Excavation
    Frank Bland Training Center - San Bernardino, CA
    8 hours – October 2015

  • Crime Scene and Forensic Photography 
    Frank Bland Training Center - San Bernardino, CA
    40 hours – October 2015

  • Coroner Bone ID and Recovery
    Frank Bland Training Center - San Bernardino, CA 
    8 hours – October 2015

  • Advanced Latent Fingerprint 
    Frank Bland Training Center - San Bernardino, CA
    40 hours – April 2015

  • Gunshot Trajectory 
    Frank Bland Training Center - San Bernardino, CA
    40 hours – October 2014

  • Bloodstain Pattern Analysis 
    Frank Bland Training Center - San Bernardino, CA
    40 hours – October 2014

  • Traffic Collision Investigation – Basic 
    Frank Bland Training Center - San Bernardino, CA
    40 hours – January 2014

  • Crime Scene Investigation – Basic 
    Frank Bland Training Center - San Bernardino, CA
    80 hours - December 2013

  • Crime Scene/Shoe and Tire Impression
    Frank Bland Training Center - San Bernardino, CA
    24 hours – November 2013

Other Laboratory Training
  • Functional Examinations (Gun Function Analysis) – December 2019

  • NIBIN Entry and Correlation Review – January 2021

  • Class Characteristics of Bullets and Fired Cartridge Cases (General Rifling Characteristic Analysis) – January 2023

  • Cartridge Case Examination and Comparison – April 2024

Experience
  • Criminalist & Forensic Consultant, Garrison Forensics LLC | 2026 – Present

  • Criminalist, San Bernardino County Sheriff's Department | 2018 – Present

  • Sheriff's Crime Scene Specialist | 2016 – 2018

  • Sheriff's Service Specialist (Crime Scene, Traffic and Evidence Room Management) | 2013-2016

Court Qualifications
  • Firearm toolmark microscopic comparison – California Superior Court

  • Bloodstain Pattern Interpretation – California Superior Court

  • Crime Scene Investigation – California Superior Court

  • General Rifling Characteristics – California Superior Court

  • Gun Function – California Superior Court

  • Gunshot Trajectory – California Superior Court

  • National Integrated Ballistic Information Network (NIBIN) – California Superior Court

  • Technical Processing of Evidence – California Superior Court

Memberships
  • Distinguished Member, Association of Firearm and Tool Mark Examiners (AFTE) | 2019

    • Training Manual Subcommittee | 2025​

    • Distinguished Membership |2026

  • California Association for Criminalists | 2019

  • Organization of Scientific Area Committees for Forensic Science (OSAC) | 2025

    • 3 year term to Firearms Subcommittee​

Presentations and Research
  • “3d Printed Firearms and Related Evidence”

    • Presented to the California Association of Criminalists

    • 2026

  • “3D printed object topography analysis and the viability for forensic examination” – co-author

    • Accepted for publication to Journal of Forensic Sciences

    • April, 2026

  • “Magazine Lip Mark from Ejection”

    • Accepted for publication in an upcoming AFTE Journal

    • 2025

  • “3D Printing for Toolmarks Examiners”

    • Presented to the Southern Area Forensic Firearms Training Event

    • October, 2025​

  • “Privately Made Firearms – From 80 to 0” (2 hour webinar)

    • Presented to the New Jersey Division of the Internation Association of Identification

    • June, 2025

  • “The Lo-Point: Endurance of a 3D-Printed Hybrid Firearm”

    • Presented at the Association of Firearms and Tool Mark Examiners Conference

    • 2025

  • “Evaluation of NIBIN Unified Scores in Relation to NIBIN Leads: Establishing a Score Threshold to Improve Time Efficiency of Correlation Review”

    • Published in 2024 by the AFTE Journal; Volume 56, No. 2

  • “An exploratory study of topographical signatures within 3D fused deposition modelling using Polylactic Acid (PLA) filament.” – Co-author

    • Published in Forensic Science International

    • May 2023

  • “Initial Observations of 3D-Printer Nozzle Marks”

    • Presented at the Association of Firearms and Tool Mark Examiners Conference

    • 2023

  • “80% Firearm Kits”

    • Presented at the Association of Firearm and Tool Mark Examiners Conference (AFTE) and the California Association of Criminalists (CAC) Conference

    • 2022

Research Participant
  • Distance Determination Study

    • Organized by Erica Lawton, Alabama Department of Forensic Sciences

    • PhD thesis project

    • 2025

  • Sun Devil Firearm Study

    • Organized by Max Guyll, Arizona State University

    • 2025
       

Journal Review

Journal of Forensic Sciences – American Academy of Forensic Sciences

  • Examining the Effects of 3D Printed Projectiles on Firearm Identification

    • April 2025

  • An Unusual Home Made Firearm: Cartridge Identification Challenge

    • July 2025 and November 2025

  • Firing Cycle Dynamics and Forensic Interpretation of 3D-Printed Ruger 10/22 Receivers During Live Fire

    • February 2026
       

Consulting Fee Schedule

Standard fee structure for professional services provided by Garrison Forensics LLC. All consulting agreements require a signed contract and minimum retainer before case review begins. Travel and consulting services are billed at fixed professional rates.

Hourly Consultation & Case Review

$200.00 / Hour

Initial Minimum Retainer

$(based upon time estimate)

Travel & Portal-to-Portal Time

$100.00 / Hour

Deposition & Trial Testimony

$1,000.00 (Minimum per half-day)

Rescheduling & Cancellation

72-Hour Advance Notice Required

Emergency/After-Hours Contact (MOU required)

$400.00 / Hour

Pro bono or reduced cost

Variable, case by case

bottom of page