DNA EVIDENCE

Dr. Fritz has been a forensic polygraph and certified voice analyst examiner for over forty years. He is a former Counterintelligence Special Agent and a former member of the Chicago Police Dept. Dr. Fritz has testified as an “expert” in State and Federal Courts concerning lie detector tests and polygraph. His polygraph training was under the supervision of Mr. Cleve Backster, former CIA and US Army Intelligence interrogator, who was tasked with implementing the CIA polygraph unit. His Voice Stress Analysis training was under the tutorship of Lt. Col. McQuiston and Lt. Col. Allan Bell, the inventors of Voice Stress Analysis. All while employed in the research and development section of US Army Intelligence. Tests are available in the Phoenix Metropolitan Area.

The result of inclusion is reached when the DNA profile of a known individual matches the DNA profile found at the crime scene. This means that the individual is “included” as a source of evidence and is dependent upon the number of locations at the scene which were examined and how often that particular profile is found in the general population.

When an individual’s DNA profile does not match the DNA profile produced from the crime scene, the individual is “excluded” as the doner of the evidence. Further, an “inconclusive” result usually indicates that the DNA testing did not produce enough information to either “include” or “exclude” an individual. This determination can be reached due to a number of factors.

A review of the DNA evidence can determine whether there are “chain of custody” issues to include the handling of the evidence, preservation of samples, contamination or tampering with the samples originating from the collection of the samples at the crime scene or throughout the process of DNA samples.

Drake Forensic Group, LLC can provide expert witness testimony to explain the results in a simple manner to the judge and jurors.

Clearly, DNA evidence is a formidable tool for uncovering the truth and upholding the rights of the accused. It can exonerate the wrongfully accused. DNA analysis’ importance cannot be overstated, and challenges to DNA evidence are a critical part of ensuring its reliability.

Drake Forensic Group, LLC can assist in the interpretation of the results as well as the protocol utilized to produce results and determine their reliability and accuracy.