FORENSIC CONSULTING

case file review

Forensic DNA typing is an ever-evolving field of science. Forensic evidence for DNA testing is being submitted in practically any type of criminal investigation, due to the increased sensitivity and specificity of the test(s) performed. But, just like human beings, forensic casework labs are imperfect. The increased pressure to reduce turnaround times coupled with ever-increasing caseload and sample submissions has resulted in instances of contamination, improper interpretation of DNA profiles, and even DNA sample mix-ups. Each laboratory has their own protocol for documenting errors, but have you ever wondered if the results in your case are error-free? Were all of the appropriate tests performed? Did the analyst(s) follow the correct protocol(s) for the test(s) performed? Do you understand the final DNA report and associated statistics? And, do you know where to look in the case file to spot any potential error(s) that can explain the final conclusion(s) in the report?

In order to have confidence in the testing laboratory’s results and interpretation(s), a review from an independent forensic DNA consulting firm may be needed. When performing any consulting work, the entirety of the case file will be comprehensively reviewed for any errors or inconsistencies in the processing, interpretation or statistical analysis of the submitted evidence. Adherence to laboratory protocols will also be assessed.

Once the review has been completed, we can assist you and your team with your understanding of our findings, general forensic biology and genetics, what the serology and DNA results actually mean, the statistical results associated with any interpreted DNA profiles, and the associated implications of those results.

Case file review may include any and all of the following components:

• Complete review of both serology (evidence examination) and DNA results

• Complete review of the laboratory’s manuals including standard operating procedures (SOPs), Quality Assurance (QA), and Validation documents

• Review of the testing laboratory’s contamination/carry-over/unexplained profile logs

• Review of the lab’s accreditation documentation including past audit reports

LABORATORY OBSERVATION OF CONSUMPTIVE DNA/SAMPLE TESTING

In some instances, the forensic evidence submitted for analysis is extremely limited. A biological sample may be limited in both quantity and quality, where the laboratory may determine that the entirety of the submitted evidence (sample) must be consumed in an attempt to generate an interpretable DNA profile. When this situation arises, you may find it useful to have your own forensic expert present during the consumptive step of the DNA typing workflow to observe each of the procedures.

The expert will be able to confirm adherence to any and all laboratory protocols, proper analytical technique of the technician(s) and/or scientist(s), as well as ensure that no unnoticed errors have occurred during the analysis process. By having your own forensic expert present, you can have greater confidence in the final case report because you know that an independent set of eyes was present and witnessed each step of the DNA typing process for the consumed evidentiary sample.

court PREPARATION/OBSERVATION OF OPPOSING EXPERT/EXPERT TESTIMONY

Are you preparing for court and you aren’t sure what forensic DNA questions you should ask? Have you reviewed the case report, but you still feel a bit confused about what the findings imply? Consider having a conversation with Dr. Novroski to clarify any confusion or ambiguity you may have prior to or during the judicial process.

In court, have you ever wondered if the forensic expert is explaining all aspects of the case report correctly? Did the forensic expert omit or misrepresent some of the evidence that may be pertinent for your client? Dr. Novroski is available to observe the testimony of the opposing DNA expert and to offer potential cross-examination question suggestions either before or during the court proceedings. By having your own expert present, you can ensure that the most appropriate serology and DNA-related questions are being asked using the correct terminology, and that the opposing expert has represented the case report findings in an unbiased, simple and comprehensive manner.

TRAINING/education/SEMINARS

Do you think your staff or group could benefit from additional knowledge in the area of forensic DNA typing? Do you want to learn the difference between a single source and mixture DNA profile? Can you understand the DNA report that you’re reading?

As a passionate educator to audiences of all levels, Dr. Novroski is available for education and training purposes. Over the years, Dr. Novroski has had the opportunity to provide training and education to a diversity of groups including:

• Attorneys, Legal Professionals, and Investigators

• Forensic Scientists of all levels

• Police Officers

• Students

• Volunteer Organizations

Nicole Novroski © 2023