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
Thank you for providing me with such outstanding service. I truly appreciate you and your staff for all you’ve done for me and my family…. I’m totally pleased with the outcome and their findings… Great job!
Gerome S. | Retired | USA
I have used Tristar for years. Their response time and results are unparalleled. They get my highest praise.
Robert Clayton, Attorney | Taylor & Ring, LLP | Los Angeles, CA
Tristar found my birth mothers records the same day. I am very impressed with their professionalism and the services they provide. I will use them again for any of my needs.
Dr. Claudia Barne | Professor | 23 years
Tristar was very helpful in my address search. Kellie Anguiano was very personable and kept me up to date with the search process… Thank you so much for your help!
Emily | DDS Student | 2 years | Los Angeles, CA
Tristar is by far the most reliable and efficient investigator we have ever used.
Nicole Young | Attorney, 14 years | Woodland Hills, CA
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.
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 founderread more
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.read more
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 detectiveread more