What we do.
Principle Forensics LLC is a national full-service media forensics laboratory. We recover, authenticate, enhance, and analyze all types of recorded evidence, including video, audio, and digital images. And whenever needed, we back all our work with experienced, highly trained, expert testimony.
Who we are.
Nick Barreiro, BAC, AVFA, DIVRT, AFCE
Chief Forensic Analyst
Nick Barreiro is a certified Audio Video Forensic Analyst and the founder of Principle Forensics. He has conducted over a thousand forensic audio, video, and image investigations in the United States and internationally. He has enhanced and analyzed pivotal pieces of evidence in cases ranging from simple slip-and-fall incidents and minor traffic collisions, to complex investigations such as homicides and officer-involved shootings.
Mr. Barreiro is an FBI-trained member of the Digital Imaging and Video Recovery Team and he holds a bachelor’s degree in Communications from the University of California at Davis. He has received advanced training from the Federal Bureau of Investigation, the Robert Presley Institute of Criminal Investigation, the California Department of Justice, the Central California Intelligence Center, the Department of Homeland Security, Resolution Video, Amped Software, the Audio Engineering Society, and the University of Colorado Denver.
Prior to becoming a full-time Forensic Analyst, Mr. Barreiro spent 15 years as a law enforcement officer in California. He worked for the West Sacramento Police Department as a Patrol Officer, Field Training Officer, Detective, and Patrol Sergeant. He was heavily involved in all aspects of technology and innovation at the department, including implementation and management of a digital evidence system, facial recognition technology, license plate readers, dash cameras and body-worn cameras.
While working as a Detective in the Investigations Unit, Mr. Barreiro handled all media forensics including collecting, enhancing, and analyzing recordings from surveillance cameras, cell phones, traffic cameras, voice recorders, body-worn cameras, and dash cameras.
Prior to his career in law enforcement, Mr. Barreiro was an audio engineer and producer in California. He worked for KBMB radio in Sacramento and has extensive experience and training in audio enhancement and analysis.
Mr. Barreiro is an active member of the International Association for Identification, Audio Engineering Society, and Electronics Technicians Association International.
As a court-certified expert, Mr. Barreiro regularly provides expert testimony in civil litigation, criminal prosecutions, and appeals.
“Not guilty on all counts!!! Thanks Nick. You're awesome! I can't thank you enough.”
― Daryoush Sameyah, Los Angeles, California