David Zigan is a seasoned investigator with over 20 years of experience as a certified peace officer in the State of Georgia, currently assigned to a Crime Scene Investigations Unit in the North Metro Atlanta area. He is a Certified Latent Fingerprint Examiner and Certified Crime Scene Technician, as well as a graduate of the prestigious National Forensic Academy in Oak Ridge, Tennessee (Body Farm). Zigan’s expertise spans a wide range of forensic disciplines, including Bloodstain Pattern Analysis, Advanced Shooting Incident Reconstruction, and Crime Scene Reconstruction. His skill set and dedication have earned him recognition as an expert witness in numerous cases involving Latent Fingerprint Examinations and Crime Scene Processing.

A highly sought-after instructor, Zigan has served as an adjunct instructor at the National Forensic Academy, where he delivered presentations and hands-on training on advanced fingerprint processing techniques. In addition to his teaching credentials, he has acted as a latent fingerprint verifier, instructor, and consultant for various agencies. His specialization in dermal and friction ridges includes an advanced understanding of distortion and the contextual information conveyed after deposition. Zigan’s investigative background includes his role as a Crimes Against Persons Detective, where he investigated major crimes, ranging from minor assaults to homicides, and his tenure with the Georgia Bureau of Investigation’s Internet Crimes Against Children Task Force.

As an active member of numerous professional organizations, including the Chartered Society of Forensic Sciences (CSFS), the International Association for Identification (IAI), the International Crime Scene Investigators Association (ICSIA), the Association for Crime Scene Reconstruction (ACSR), and the International Association for Bloodstain Pattern Analysts (IABPA), Zigan remains at the forefront of advancements in forensic science and crime scene investigation.

Zigan is now applying his extensive forensic expertise to the investigation of Bigfoot evidence, including analyzing casts and purported dermal ridges found in such casts. His goal is to promote a scientifically rigorous approach to Bigfoot research by educating the community on proper evidence-gathering techniques. By combining his vast knowledge of crime scene processing with his passion for uncovering the truth, Zigan is working to elevate the credibility of Bigfoot research and help the field gain greater acceptance in mainstream science.