California PI License #18755 · Serving Southern, Central & Northern California since 1996 1-877-PROOF-24/7 · Open 24/7

Trusted Private Investigator Serving Brisbane — Surveillance Experts

From cheating spouses to workers' comp fraud, our Brisbane investigators document the facts lawfully and discreetly across Northern California.

California PI License #18755Veteran-OwnedSince 1996

Why Brisbane Clients Choose Bear Witness

  • Surveillance specialists since 1996
  • Licensed California investigators, not a call center
  • Limited caseload — direct access to your investigator
  • Serving all of San Mateo County and Northern California
  • Court-ready video, reports, and testimony

Brisbane Private Investigator Services, Built Around Surveillance

Looking for a private investigator in Brisbane? Bear Witness Private Investigators is a California-licensed firm (PI #18755) that has specialized in surveillance since 1996. Brisbane is a city of about 4,700 people in San Mateo County, and it is part of our regular coverage across Northern California.

Our Brisbane clients include individuals facing infidelity or a missing family member, parents in custody and support disputes, employers and insurers dealing with fraud, and law firms that need evidence and testimony. What they share is a need for discreet, lawful surveillance that holds up.

Call 1(877)PROOF-24/7

1996
Surveillance specialists since
24/7
Available day and night
#18755
California PI license
4,700
Brisbane residents we serve

Why Surveillance Is at the Heart of Every Brisbane Case

As a Brisbane private investigator, surveillance is the core of what we do. We document activity legally, discreetly, and in a way that holds up in court.

Mobile Surveillance

We follow the subject by vehicle through Brisbane and beyond, keeping distance and cover so they never know we are there.

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.

In a community of about 4,700 people, an unfamiliar car gets noticed quickly. We keep observation windows short and well planned.

What Our Brisbane Private Investigators Handle

Four kinds of clients call us most — and surveillance is at the center of almost every case.

Personal Cases

  • Nanny & daycare surveillance — peace of mind about who is caring for your child in Brisbane.
  • Runaways & missing persons — locating family members and loved ones who have left or lost touch.
  • Infidelity & cheating spouse — documenting where a partner goes and who they meet, without them knowing.

Family Law Cases

  • Divorce investigations — documentation that supports your attorney’s strategy.
  • Cohabitation — evidence of a supported spouse living with a partner, relevant to support.
  • Child support — uncovering unreported work that affects support.
  • Lifestyle investigations — documenting spending, activities, and lifestyle relevant to support claims.
  • Child custody — documenting what happens during parenting time in and around Brisbane.
  • Child visitation — a factual record of exchanges and visits.

Business Cases

  • Business partner surveillance — verifying what a partner or associate is really doing.
  • Insurance defense — field work that supports a strong defense.
  • Employee theft — quietly confirming suspected theft so you can respond with facts.
  • Injury claims — showing what a claimant can really do.
  • Workers’ comp fraud — documenting claimant activity across San Mateo County.

Law Firm Cases

  • Records research — the records behind the story.
  • Evasive subpoena service — service on people who don’t want to be found.
  • Surveillance — time-stamped video and investigator reports for your case.
  • Witness statements — locating witnesses and taking their statements.
  • Evidence gathering — documentation built for the Superior Court of California, County of San Mateo.
  • Court testimony — investigator testimony in California courts when needed.

The Bear Witness Difference in Brisbane

Choosing a private investigator in Brisbane comes down to experience, discretion, and evidence that holds up.

Licensed & Veteran-Owned

A veteran-owned firm licensed by the California Bureau of Security and Investigative Services.

Available 24/7

Nights, weekends, holidays — we work when your subject is active.

Surveillance Specialists

Surveillance has been our focus since 1996. It is not a side service — it is what we do best.

Court-Ready Evidence

Time-stamped video, detailed reports, and investigator testimony that stand up in court.

Honest Results

If nothing is going on, we tell you. A clear answer is the goal, not more billable hours.

Absolute Discretion

Confidential from the first call; covert in the field.

What Our Clients Say

Real reviews from Bear Witness clients across California.

“Thanks for the great investigation. This was my first time hiring a private investigator and you guys really made it a positive experience. The surveillance video and information your company obtained really helped me out in making a tough decision. I appreciate all your hard work and personal attention.”

Michele · Irvine, CA

“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.”

Jeff · Murrieta, CA

“Thank you for getting me the information I needed to make a smart life-altering decision. I had a weird feeling my fiance was seeing another woman. But, your company got me the hard proof. And you got it fast. Many thanks to your private investigators! You saved me from making a big mistake.”

Angie · Irvine, CA

Names and/or locations altered for client privacy. Read more client reviews →

Where Brisbane Cases Are Heard

Brisbane sits roughly 14 miles from Redwood City, the San Mateo County seat, where the main Superior Court of California, County of San Mateo facilities are located.

If your Brisbane matter ends up in the Superior Court of California, County of San Mateo, documentation quality decides whether the evidence helps. We keep chain-of-custody records and write reports in plain chronological order.

Also Serving Near Brisbane

Cases rarely stay inside one city limit. From Brisbane, we regularly work:

Straight-line distances from Brisbane.

How Hiring a Private Investigator in Brisbane Works

  1. 1

    Free Consultation

    Tell a licensed investigator what you know and what you need confirmed. Completely confidential.

  2. 2

    Plan & Estimate

    We build a plan around your subject’s routine in Brisbane and give you a written estimate before any work begins.

  3. 3

    Surveillance

    Your investigator documents activity with time-stamped video and keeps you updated.

  4. 4

    Report & Evidence

    You receive a clear written report, photos, and video — plus testimony if needed.

Questions About Hiring a Private Investigator in Brisbane

Do you also cover San Bruno and Daly City?

Yes. San Bruno is about 4 miles from Brisbane and Daly City about 5 miles, and both are part of our regular coverage in Northern California.

What does a private investigator in Brisbane 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 Brisbane and across California.

How is a Brisbane investigation priced?

Surveillance is billed by time. After a free consultation, you get a written estimate before any billable work begins.

How do I verify your license?

Look up PI License #18755 on the California Department of Consumer Affairs license search.

Do you work with San Mateo County attorneys?

Yes. Law firms use us for evidence gathering, surveillance, witness statements, records research, evasive subpoena service, and court testimony.

Do I need to meet in person?

No. Most Brisbane clients handle everything by phone, from the first call to the final report.

What if the investigation finds nothing?

You get an honest report that says so. A clean result still answers the question.

Can you catch a cheating spouse in Brisbane?

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.

Ready to talk to a private investigator in Brisbane? Call 1(877)PROOF-24/7 for a free, confidential consultation.

Talk to a Licensed Investigator Today

Free, confidential consultation. Available 24 hours a day, 7 days a week.

Call 1(877)PROOF-24/7