Brian Dalrymple pioneered laser fingerprint detection; technology that changed forensic science forever.
With almost 30 years at the Ontario Provincial Police and a lifetime of research, teaching, and global consulting, he’s the expert that the experts call.
That year, he and colleagues Duff and Menzel were responsible for a pivotal breakthrough in modern forensic history – the discovery of laser detection of fingerprints through inherent luminescence.
Ten years later, Brian applied computer enhancement technology to evidence images, once again placing his team and the OPP as Canadian leaders in forensic science.
Under his leadership, the OPP became the first police agency in the world to operationalize this technology, laying the foundation for today’s global use of Forensic Light Sources.
From homicide investigations to art inspections, Brian Dalrymple has spent a lifetime uncovering the unseen. His forensic work has solved complex cases, exposed frauds, and brought clarity to evidence others might overlook.
As an expert witness, he’s explained the science behind fingerprints, footprints, and traces of truth in courts across Canada and beyond.
More recently, Brian advises filmmakers and writers on getting forensic details right. His consulting expertise bridges science and storytelling, connecting real investigation with the way the world understands crime and evidence.
By using powerful light sources to excite natural luminescence in fingerprint residues, investigators could reveal hidden prints without contact or contamination. This allowed for faster, more accurate recovery of evidence on materials once thought impossible to examine.
The breakthrough, developed through Brian and colleagues research with the Xerox Research Centre, revolutionized forensic sciences around the world, and it all started right here in Canada!
Imagine trying to locate a single grain of salt on a countertop. Now imagine the grain of salt is a tiny flashlight.
Traditional powders and chemicals often damaged evidence or failed on materials like fabrics, plastics, or paper. The laser technique changed everything. For the first time in history, light itself was being used as a detection strategy.
The laser technique changed everything. For the first time in history, light itself was being used as a detection strategy and previously unseen fingerprints were found.
Brian Dalrymple’s 28-year career with the Ontario Provincial Police (OPP) defined a generation of forensic innovation. He led teams handling major crimes, homicides, and complex investigations while being a critical scientific researcher. That was just the beginning!
Today, he continues to expand his career as he leads forensic/police courses, teaches university students, offers mentorships, seminars, podcasts, talks and conducts research worldwide.
He is author of 3 popular forensics books/ textbooks, with a new one on the way in 2026! These achievements are testament to his ongoing passion for this exciting field of work.
Brian’s contributions have earned recognition from police, forensic, and scientific organizations worldwide. He is also a fellow and member of several associations, including the International Fingerprint Research Group, the International Association for Identification, and the Canadian Association for Chiefs of Police.
For speaking engagements, specialized training, or research, Brian welcomes opportunities to share knowledge and expertise with organizations around the world.
