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DNA (Deoxyribonucleic Acid) Expert Witnesses

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Suzanna Ryan, MS, D-ABC
3548 Woodland Way
Carlsbad CA 92008
phone: 949-973-7588
fax: 855-773-5358
Suzanna Ryan, MS, D-ABC, is a former forensic DNA analyst and forensic DNA Technical leader with 15 years of experience in the field of Forensic Serology and DNA Analysis. She has had the opportunity to work for both public and private DNA laboratories and has testified numerous time for both the prosecution and the defense.

Ms. Ryan's expert testimony has been admitted in eight states including Rhode Island, Maryland, Texas, Florida, California, Washington, Iowa, and Idaho as well as in Kaiserslautern, Germany. She has been accepted as an expert witness in forensic serology and DNA analysis over 60 times in her career in state superior courts, state supreme court, federal court, and military court, and has been deposed as an expert witness in both criminal and civil trials over 20 times.

Services Include:
  • Review of DNA case file, including all laboratory bench notes, communication logs, chain of custody, DNA data, mixture interpretations, statistical conclusions, and reported results and conclusiosn.
  • Reanalysis of electronic DNA data utilizing Applied Biosystems’ GeneMapper ID software and re-interpretation of any mixtures to ensure the interpretation complies with laboratory and national guidelines (FBI Trained)
  • Consultation time with the client as well as assistance with court preparation and cross-examination questions
  • Observation of consumptive DNA testing
View Suzanna Ryan's Consulting Profile.
It used to be that if your DNA was found at a crime scene, there was a pretty good chance that not only were you present at that crime scene, but you probably were involved in the crime as well. After all, if your blood was found on the murder weapon or your semen was found on or in the victim, chances are you were probably intimately involved with the person and/or the crime.

In April of 2010, the Scientific Working Group on DNA Analysis Methods (SWGDAM) published a report entitled Interpretation Guidelines for Autosomal STR Typing by DNA Testing Laboratories. This document updates and supersedes the previous SWGDAM Interpretation document released ten years earlier in 2000 and is now being used as guidance in crime labs across the nation.

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George Schiro, MS
DNA Technical Leader - Forensic Scientist
220 Woodgate Dr. S.
Brandon MS 39042
phone: 337-322-2724
George Schiro is a DNA Technical Leader - Forensic Scientist. His duties include incorporating the DNA Advisory Board (DAB) standards, accountability for the technical operations of the lab, conducting DNA analysis using the 13 STR core loci and Y STR in casework, DNA research, forensic science training and crime scene investigation.

Mr. Schiro has worked over 3500 cases and has qualified as an expert over 175 times in 31 Louisiana parish courts, Arkansas, California, Florida, Mississippi, Missouri, Nevada, New York, Texas, West Virginia, federal court, U.S. court-martial, and two Louisiana city courts. Has also consulted on cases in 29 states.

Qualified as an Expert in the Following Areas:
  • Latent Fingerprint Development
  • Serology
  • Crime Scene Investigation
  • Forensic Science
  • Trajectory Reconstruction
  • Shoeprint Identification
  • Crime Scene Reconstruction
  • Bloodstain Pattern Analysis
  • DNA Analysis
  • Fracture Match Analysis
  • Hair Comparison
  • In 1989, I heard Dr. Henry Lee speak at a homicide conference in Metairie, Louisiana. Dr. Lee is currently the Connecticut Department of Public Safety Commissioner and, perhaps, the most famous forensic scientist in the world.

    3/30/2010 · Forensics
    One specialized operation that is routinely abused is the crime scene operation. From small police departments to large law enforcement agencies, the biggest problem with crime scene operations is the presence and interference of non-essential personnel at the scene. The law enforcement agency’s administration should deal with this and other crime scene investigation problems through effective crime scene management.