Private Investigator in San Anselmo, CA — Surveillance Is Our Specialty
Looking for a private investigator in San Anselmo? Bear Witness Private Investigators is a California-licensed firm (PI #18755) that has specialized in surveillance since 1996. San Anselmo is a town of about 13,000 people in Marin County, and it is part of our regular coverage across Northern California.
Whether you suspect a cheating spouse, need evidence for a custody or support case, are dealing with a questionable workers’ compensation claim, or represent a client who needs court-ready surveillance, our San Anselmo investigators plan each case around the subject’s real routine and document it with time-stamped video.
Surveillance Specialists Serving San Anselmo
Most investigations come down to one question: what is really happening? A private investigator in San Anselmo answers it with surveillance video, photos, and a written timeline.
Mobile Surveillance
Experienced drivers who anticipate turns and freeway exits, so your subject is documented from stop to stop.
Static Surveillance
Discreet observation of a home, workplace, or business from a lawful public vantage point, documenting who comes and goes.
Two-Investigator Teams
For careful or unpredictable subjects, two investigators trade off so the same car is never seen twice.
Every San Anselmo surveillance plan is built around where your subject actually lives, works, and spends time — not a generic template.
How a San Anselmo Private Investigator Can Help
Four kinds of clients call us most — and surveillance is at the center of almost every case.
Personal Cases
- Infidelity & cheating spouse — documenting where a partner goes and who they meet, without them knowing.
- Nanny & daycare surveillance — observing caregiver conduct and advising on what in-home recording is legal.
- Runaways & missing persons — finding someone who has left San Anselmo or stopped answering.
Family Law Cases
- Child visitation — documenting visitation exchanges and compliance with the court order.
- Divorce investigations — documentation that supports your attorney’s strategy.
- Cohabitation — documenting cohabitation that can affect spousal support under Family Code 4323.
- Child custody — documenting what happens during parenting time in and around San Anselmo.
- Lifestyle investigations — documenting spending, activities, and lifestyle relevant to support claims.
- Child support — uncovering unreported work that affects support.
Business Cases
- Insurance defense — claim investigations built for insurers and their attorneys.
- Injury claims — verifying the extent of claimed injuries through lawful observation.
- Employee theft — quietly confirming suspected theft so you can respond with facts.
- Business partner surveillance — due diligence and surveillance on partners and key associates.
- Workers’ comp fraud — documenting claimant activity across Marin County.
Law Firm Cases
- Court testimony — our investigators testify to what they observed.
- Evidence gathering — court-ready documentation for litigation.
- Surveillance — surveillance your client’s case can stand on.
- Records research — the records behind the story.
- Witness statements — locating witnesses and taking their statements.
- Evasive subpoena service — skip-tracing and service for hard-to-serve subjects.
What Sets Our San Anselmo Investigators Apart
Not every San Anselmo private investigator specializes in surveillance. Here is what makes Bear Witness different.
Absolute Discretion
Your case is never discussed with anyone outside the firm, and the subject never knows we were there.
Surveillance Specialists
We specialize in surveillance, so your case gets investigators who do this every day.
Licensed & Veteran-Owned
A veteran-owned firm licensed by the California Bureau of Security and Investigative Services.
Available 24/7
Cases don’t keep business hours. We take calls and work surveillance day, night, and weekends.
Direct Access to Your Investigator
We limit our caseload, so you talk to the investigator working your case — not a call center.
Statewide Coverage
Coverage across Southern, Northern, and Central California, including all of Marin County.
What Our Clients Say
Real reviews from Bear Witness clients across California.
“I first consulted with a few other investigation companies in the area, yet I remained skeptical about their service. But, after I talked over my case with James, I was pleased with the high levels of confidence and experience he conveyed. In the end, I am glad I chose Bear Witness to perform my surveillance investigation. Thanks for the video your company obtained. It was eye-opening.”
“Of all the private investigators I have used, the Bear Witness Detective Agency has proven to be the only investigation company I can completely rely on and trust. When I need smart surveillance investigators who get the job done right, they are always at the very top of my call list.”
“Excellent communication, insight, and follow-through skills. Very impressed with your surveillance video. Excellent work. Thank you! Will refer to friends in need.”
Names and/or locations altered for client privacy. Read more client reviews →
San Anselmo Cases and the Marin County Courts
San Anselmo sits roughly 3 miles from San Rafael, the Marin County seat, where the main Superior Court of California, County of Marin facilities are located.
If your San Anselmo matter ends up in the Superior Court of California, County of Marin, documentation quality decides whether the evidence helps. We keep chain-of-custody records and write reports in plain chronological order.
Nearby Areas We Cover
If your subject lives in San Anselmo but works or travels elsewhere, that’s routine. Nearby areas include:
Straight-line distances from San Anselmo.
Working With a San Anselmo Private Investigator, Step by Step
- 1
Free Consultation
Tell a licensed investigator what you know and what you need confirmed. Completely confidential.
- 2
Plan & Estimate
We build a plan around your subject’s routine in San Anselmo and give you a written estimate before any work begins.
- 3
Surveillance
Your investigator documents activity with time-stamped video and keeps you updated.
- 4
Report & Evidence
You receive a clear written report, photos, and video — plus testimony if needed.
Questions About Hiring a Private Investigator in San Anselmo
Do you also cover Ross and Fairfax?
Yes. Ross is about 1 mile from San Anselmo and Fairfax about 1 mile, and both are part of our regular coverage in Northern California.
What does a private investigator in San Anselmo do?
We document facts for personal, family law, business, and legal cases — most often through surveillance, along with background research, people location, witness statements, and process serving.
Do you specialize in surveillance?
Yes. Surveillance has been Bear Witness’s specialty since 1996, and it is part of nearly every case we handle in San Anselmo and across California.
How do I verify your license?
Look up PI License #18755 on the California Department of Consumer Affairs license search.
Is everything I tell you confidential?
Yes. Your case is handled by your assigned investigator and never discussed with anyone outside the firm.
Can you document cohabitation for a spousal support case?
Yes. Under California Family Code section 4323, a supported spouse living with a partner can create a presumption of decreased need for support. We document cohabitation for you and your attorney.
What if the investigation finds nothing?
You get an honest report that says so. A clean result still answers the question.
How quickly can a San Anselmo case start?
Most cases begin within a day or two of your first call, once we agree on a plan.
Can you catch a cheating spouse in San Anselmo?
We can document what your spouse actually does and who they meet, with time-stamped video and a written report, and give you a clear answer either way.
Every case starts with a free, confidential consultation. Call 1(877)PROOF-24/7 to speak with a licensed investigator about your San Anselmo case.