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PhD Researcher, Staffordshire University

Zack Kowalske serves as a Crime Scene Detective with the Roswell Police Department (Georgia, United States), where he has spent the majority of the past 15 years assigned to the Crime Scene Investigations Unit. Mr. Kowalske holds a Masters of Science with a Concentration in Forensic Science, and a Bachelor of Science in Investigative Forensics with a Minor in Terrorism and Critical Infrastructure. He is a PhD Researcher with Staffordshire University, completing his Doctoral dissertation research in Forensic Science focusing on the discipline of bloodstain pattern analysis.

A graduate of the National Forensic Academy (US), he was awarded the Dr. William Bass Award for Outstanding Achievement in the Field of Forensic Investigations. Mr. Kowalske was first certified as a Crime Scene Investigator by the IAI in 2007 and then obtained the IAI certification of Crime Scene Reconstructionist. Concentrating on Bloodstain Pattern Analysis and Shooting Incident Reconstruction, he has been court-qualified as an expert witness in Crime Scene Investigations, Crime Scene Reconstruction, Crime Scene Analysis, Bloodstain Pattern Analysis, Shooting Reconstruction, and Physical Fit Examination. Mr. Kowalske is an active member of the IAI, AAFS, and IABPA, serves on the ACSR Board of Directors, and is a sitting member of the Federal OSAC Subcommittee on Bloodstain Pattern Analysis. He has published both Journal and Magazine articles on Crime Scene Investigation and Reconstruction topics. Outside of his Police Agency Career, Mr. Kowalske conducts private forensic casework for prosecution and defense clients and teaches with his consulting firm, Foxen Forensic Laboratories.


  • 2009–2024
    Forensic Detective, Roswell Police Department
  • 2018–2024
    Principal Forensic Advisor, Foxen Forensic Laboratories