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.
View Suzanna Ryan's Consulting Profile
- 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
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.