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Ballistics Expert Witness


 

 


Expert Witness No.2370 
 

Experience   

January 1997 to Present
 Forensic Services
San Diego, CA
Criminalist / Firearms Criminalist
* Duties encompass the scientific analysis and evaluation of firearm and toolmark related evidence. • Microscopic comparisons and identification of bullets, cartridge cases, and toolmarks • Serial number restoration • Firearm operability • Sound suppression devices (silencers) • Conversions of semi-automatic firearms into full-automatic • Performance testing of firearms and ammunition • Gunshot residue testing and significance • Ejection patterns • Wound ballistics • Trajectory analysis • Distance determinations  • Assault Weapon determinations • Firearm failure analysis • Reconstruction of shooting incidents.
*October 1997 to May 1999:  Contract Laboratory for San Diego Sheriff’s Crime Laboratory.

 

June 1999 to December 2006
San Diego County Sheriff’s Department, Regional Crime Laboratory
San Diego, CA
Criminalist II
*  Firearms Analysis Unit
•    Duties encompass the scientific analysis and evaluation of firearm and toolmark related evidence. • Microscopic comparisons and identification of bullets, cartridge cases, and toolmarks • Serial number restoration • Firearm operability • Sound suppression devices (silencers) • Conversions of semi-automatic firearms into full-automatic • Ejection patterns • Wound ballistics • Trajectory analysis • Distance determinations • Gunshot residue testing and significance •  Reconstruction of shooting incidents. • Assault Weapon determinations. • Inspection of firearms, ammunition, and firearm devices at area gun shows for compliance with local, state, federal laws • Perform maintenance and quality control checks on instrumentation • Evaluation of firearm related products for Sheriff’s Department use. • Primary trainer for firearm examiners.  
*  Crime Scene Investigation
•    Duties encompass the identification, collection and preservation of physical evidence, crime scene documentation, analysis and evaluation of evidence, and shooting event reconstruction.  Primary trainer for crime scene-shooting incident personnel.


April 1982 to July 2002    
La Mesa Police Department, Reserve Police Officer
La Mesa, CA
Criminalist
*  Identification, documentation, collection, and evaluation of firearms related evidence • Reconstruction of firearm incidents for investigative, trial, and training purposes • Instruction on the recognition and handling of firearms evidence at crime scenes • Provide expertise on firearms, ammunition, and ballistic vest performance characteristics to department for evaluation and selection purposes.

 

April 1982 to December 1994
La Mesa Police Department, Reserve Police Officer
La Mesa, CA
Rangemaster / Assistant Rangemaster / Armorer
*  Provide instruction in the areas of marksmanship, tactics, weapon’s retention, firearm recognition and operational characteristics. • Design and implement department firearm qualification courses • Document and maintain qualification records • Establish and revise criteria for “alternate service” and “backup” firearms. • Inspect firearms for condition and acceptability • Maintain and repair department firearms.

 

1980 to December 1996
Accuracy Group / Accuracy Gun Shop
San Diego, CA
Firearms Criminalist
*  Duties encompass the scientific analysis and evaluation of firearm and toolmark evidence. • Microscopic comparisons and identification of bullets, cartridge cases, and toolmarks • Serial number restoration • Firearm operability • Sound suppression devices (silencers) • Conversions of semi-automatic firearms into full-automatic • Gunshot residue • Ejection patterns • Wound ballistics • Trajectory analysis • Distance determinations • Reconstruction of shooting incidents • Performance testing of firearms and ammunition.

 

1973 to December 1996
Accuracy Group / Accuracy Gun Shop
San Diego, CA
Master Gunsmith / Gunsmith
*  Diagnosis and repair of rifles, pistols, shotguns, and special purpose firearms • Design and modify firearms for special applications. • Fabricate, heat treat, and fit internal and external mechanical components • Evaluate condition based on manufacturers’ specifications • Design and fabricate specialized components • Operate and maintain machinery and machine tools • Train and supervise apprentice and journeyman level gunsmiths.

 

September 2003 to Present
Westview High School (Poway Unified School District)
San Diego, CA
Marksmanship Coach: NJROTC Marksmanship Program
*  Duties encompass the instruction of firearm safety and marksmanship principles. • Coaching and mentoring male and female athletes in Sporter Class 3 Position Air Rifle competition at local, state, regional, and national level competitions.  

 

Education        

    Masters of Science Degree in Forensic Science  (1981)
    National University
    San Diego, CA

    Bachelors of Science Degree in Biology  (1978)
    San Diego State University  
    San Diego, CA

    Evidence Technology Program  (1978 – 1979)
    Grossmont College
    El Cajon, CA

Licenses/Certifications

    AFTE Certification: Firearm Evidence Examination and Identification (2014, 2009, 2004)
    AFTE Certification: Gunshot Residue Evidence Examination and Identification (2011, 2006)
    Civilian Marksmanship Program: JROTC Air Rifle Marksmanship Instructor (2008)
    California Basic Firearms Safety Course Instructor (1994)
    California Department of Consumer Affairs Training Instructor: Firearms (1993)
    NRA Personal Protection Instructor (1985)
    NRA Home Firearm Safety Instructor (1985)
    California Peace Officer Standards of Training Firearms Instructor (1984)
    California Community College Teaching Credential: Gunsmithing (1981)
    NRA Firearms Instructor: Rifle, Pistol, Shotgun (1981)

Publications & Presentations

    Available Upon Request    

Recognitions

    “Distinguished Member”,  Association of Firearm & Toolmark Examiners (2010)
    “Letter of Commendation”,  San Diego Co. Sheriff’s Dept. (2006)
    “Meritorious Unit Citation – Crime Laboratory”, San Diego Co. Sheriff’s Dept. (2004)
     “Recognition of Outstanding Assistance to an Investigation”, Federal Bureau Invest. (2002)
    “Academy of Excellence”, Shooting Industry Magazine (Annually 1987 to 1996)
    “American Handgunner Club 100”, American Handgunner Magazine (Annually 1987 to 1997)
    “Reserve Police Officer of the Year”, La Mesa Police Dept. (1984 -1985)

Specialized Training/Continuing Education

    Available Upon Request

Professional Affiliations  

    American Academy of Forensic Sciences  (AAFS)
    American Society of Law Enforcement Trainers (ASLET) (Past)
    Association of Firearm and Toolmark Examiners  (AFTE)
    Association for Crime Scene Reconstruction  (ACSR)
    California Association of Criminalists  (CAC)
    Human Factors and Ergonomics Society  (HFES)
    International Wound Ballistics Association  (IWBA) (Past)
    International Association for Identification (IAI) (Past)
    National Rifle Association of America  (NRA)
    Southern California Firearms Study Group (SCFSG)


Qualified Expert Witness

    United States Federal Court
    United States Military Court Martial:  Navy, Marine Corps
    United States Federal Administrative Hearing:  INS
    United States Federal Grand Jury    
    California: Superior & Municipal Courts          
    Ohio: Court of Common Pleas
    San Diego County Grand Jury

 

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