Loss Prevention

If you are looking for a loss prevention investigator, Tristar Investigation has decades of experience in the field. We have seen it all before, from isolated single employee “crimes of opportunity” to sophisticated theft rings. We cover all of California, so whether you need a loss prevention investigator in Los Angeles County or Orange County, or throughout the state, we are ready to serve your loss prevention investigation needs.
There are a number of tactics we can employ in loss prevention investigations including covert surveillance, undercover investigators, polygraph tests and employee interviews. In some cases we have uncovered conspiracies that involved numerous employees that documented collusion by several employees involved in a theft ring.
Click here to see Tristar Investigation founder Bruce Robertson on TV discussing covert surveillance.
What people are saying
Tristar in the news
Tristar Investigation has been featured in a dozens of publications, everything from print to TV and radio. Bellow you will find Burce Robertson interviewed and discussed on famous publications such as the History Channel, New York Times, CNN and a lot more.
New York Times Article Features Tristar Founder
Tristar Investigation founder Bruce Robertson was hired to track down the person who shot two endangered California Condors. In 2009 private detective and Tristar Investigation founder
News Coverage Highlights
Bruce Robertson is the founder of Tristar Investigation, a private detective agency in Los Angeles, CA. Tristar has a 28-year track record of delivering quality investigative results. Headquartered in West Los Angeles, Tristar has branch offices in San Francisco.
Real Life Private Eye
In November of 1999 Bruce Robertson, founder of Tristar Investigation, was featured on CNN Worldwide show Showbiz Today with Gloria Hillard. The report was about an ABC television show called “Snoops”, which was a glitzy send-up of life at a detective