Terri Haddix, M.D.
Dr. Haddix brings over 20 years of experience with an extremely diverse background that includes performing forensic autopsies, postmortem brain examinations, and faculty positions at Stanford University Medical Center, University of San Francisco, University of California, San Diego, and the University of Washington. Dr. Haddix also has over 15 publication in peer-reviewed journals.
Our Biology/DNA Team
C. Alan Keel, B.S.
DNA Section Technical Leader
Mr. Keel is a highly sought-after expert with a well-established reputation for finding DNA and developing a genetic profile where others have failed. Alan’s extensive knowledge and experience in DNA analysis allows him to solve particularly complex cases or find DNA on hard-to-decipher evidence. He has been responsible for consultative, analytical, and expert witness testimony services on a wide variety of cases involving biological material. Mr. Keel has been performing traditional serological and DNA investigations in the field for over 30 years, as well as receiving additional specialized DNA and forensic trainings and authoring numerous publications.
Contact Alan Keel
David Hansen, M.S.
DNA Forensic Scientist / QA Manager
Mr. Hansen joined Forensic Analytical in December 2012. He specializes in the examination of physical evidence for human biological material and the isolation, extraction, quantification, amplification, and STR genetic analysis of DNA using state-of-the-art PCR-based autosomal (Identifiler) and y-chromosome (Yfiler) STR analysis via capillary electrophoresis. He was responsible for the lab’s implementation of probabilistic genotyping and the validation of STRMix, in addition to his experience in the examination of evidence In both criminal and civil casework.
Nancy Wilson (nee Dinh), M.S.
DNA Forensic Scientist
Ms. Dinh joined Forensic Analytical Crime Lab in August 2015. She specializes in examining physical evidence for human biological material. Post-screening analysis includes sample preparation, extraction, concentration, quantification, amplification, and genetic interpretation of DNA samples using autosomal (Identifiler and MiniFiler) and y-chromosomal (Yfiler) PCR-based techniques, as well as capillary electrophoresis. She also participated in the internal validation of several DNA methodologies, including the Qiagen EZ1 Advanced XL Robot, the Quantifiler Duo DNA Quantification Kit, and the 3500 Genetic Analyzer. She has experience in the examination of evidence in civil and criminal cases and is available for consultation and review of other expert work.
Our Criminalistics Team
Kenton Wong, M.A., D-ABC
Senior Forensic Scientist
Kenton Wong has over 25 years of experience in forensic science with law enforcement agencies. He is court qualified in many areas of forensic science, including crime scene reconstruction, firearms and tool marks, bloodstain pattern analysis, arson accelerant examinations, blood alcohol analysis and interpretation, and controlled substances and has testified internationally in Hong Kong and Italy. He is also a board-certified Diplomate of the American Board of Criminalistics (D-ABC), a Distinguished Member of the Association of Firearm and Tool Mark Examiners (AFTE) and a board-certified Crime Scene Investigator (CCSI). Currently Mr. Wong serves as the chairman of the Forensic Alcohol Advisory Committee for the California Association of Criminalists and on the California State Department of Public Health’s Forensic Alcohol Review Committee. He is a member of several other professional associations, the author of over 20 published articles and has received two awards for his work with forensic associations.
Chris Coleman, B.S., F-ABC
Senior Forensic Scientist
Chris Coleman has a BS in Forensic Science and over 23 years of experience in forensic science with city and county law enforcement agencies, including fifteen years with the Contra Costa County Sheriff’s Crime Laboratory (nine as supervisor). He has been court qualified in firearms examination, shooting incident reconstruction, crime scene processing, blood spatter interpretation, controlled substance analysis and latent print processing. He holds particular expertise in firearms examination, shooting reconstruction, crime scene processing and blood spatter analysis. He is a fellow of the American Board of Criminalistics and holds certifications in firearms, toolmark, distance determination and gunshot residue by the Association of Firearms and Toolmark Examiners (AFTE). He has published and extensively taught various firearms-related subjects to law enforcement, medical and legal groups, including a recurring shooting incident reconstruction class with the California Criminalistics Institute (CCI). He is a California POST certified Firearms instructor and range master. He is also a recent past president of the California Association of Criminalists (CAC).
Peter Barnett, B.S., D-ABC
Retired / Senior Forensic Scientist
Mr. Barnett was co-founder and partner at Forensic Science Associates for more than 30 years prior to the merging of the two firms. He is experienced in the examination and analysis of physical evidence including field and laboratory examination of all types of physical evidence and has also investigated a wide variety of types of crime and accident scenes. He is a court qualified, expert witness in California, Nevada, Washington, Oregon, Arizona, Colorado, Texas, Alaska, Oklahoma and Hawaii as well as federal and military courts. He is a board-certified Diplomate of the American Board of Criminalistics and a fellow of the American Academy of Forensic Science. Mr. Barnett’s accomplishments in forensics include publishing two books, a staggering number of articles and three service awards from the California Association of Criminalistics.
Our Forensic Pathology Team
Terri Haddix, M.D.