Private Investigator in Foster City, CA — Surveillance Is Our Specialty
Bear Witness is the private investigator in Foster City that families, attorneys, and businesses call when they need facts, not guesses. Foster City is a city of about 33,000 people in San Mateo County. We are a veteran-owned, California-licensed firm (PI #18755), and surveillance is what we do best.
Our Foster City 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.
Foster City Surveillance Investigations: Our Specialty
As a Foster City 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 Foster City 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.
Foster City’s density (about 8,700 people per square mile) makes foot surveillance practical and keeping a vehicle in position harder, so we plan coverage accordingly.
What Our Foster City Private Investigators Handle
Four kinds of clients call us most — and surveillance is at the center of almost every case.
Personal Cases
- Infidelity & cheating spouse — discreet surveillance that gives you a clear answer, either way.
- Nanny & daycare surveillance — observing caregiver conduct and advising on what in-home recording is legal.
- Runaways & missing persons — finding someone who has left Foster City or stopped answering.
Family Law Cases
- Lifestyle investigations — showing how someone actually lives when income or need is in dispute.
- Child visitation — observing whether visitation terms are being followed.
- Divorce investigations — documentation that supports your attorney’s strategy.
- Cohabitation — evidence of a supported spouse living with a partner, relevant to support.
- Child custody — documenting what happens during parenting time in and around Foster City.
- Child support — identifying undisclosed work or income when support is in question.
Business Cases
- Employee theft — documenting internal theft and misconduct before you act.
- Insurance defense — field work that supports a strong defense.
- Workers’ comp fraud — surveillance on claims where activity and injuries don’t match.
- Business partner surveillance — answers before you sign or after trust breaks down.
- Injury claims — showing what a claimant can really do.
Law Firm Cases
- Records research — public and court records research to support your case.
- Evasive subpoena service — skip-tracing and service for hard-to-serve subjects.
- Evidence gathering — documentation built for the Superior Court of California, County of San Mateo.
- Witness statements — finding and interviewing the people who saw what happened.
- Surveillance — defensible surveillance your team can rely on at trial.
- Court testimony — investigator testimony in California courts when needed.
What Sets Our Foster City Investigators Apart
Not every Foster City private investigator specializes in surveillance. Here is what makes Bear Witness different.
Direct Access to Your Investigator
One investigator from your first call to your final report, with updates along the way.
Surveillance Specialists
We specialize in surveillance, so your case gets investigators who do this every day.
Honest Results
If nothing is going on, we tell you. A clear answer is the goal, not more billable hours.
Licensed & Veteran-Owned
California PI License #18755, veteran-owned and operated, held to the standards set by BSIS.
Absolute Discretion
Confidential from the first call; covert in the field.
Statewide Coverage
From Foster City to the rest of California, we follow subjects wherever the case leads.
What Our Clients Say
Real reviews from Bear Witness clients across California.
“Thank you for all your help. You guys were really great! I will definitely refer your private detective agency to all my friends & colleagues in need.”
“I hired your detective agency to do a surveillance investigation in Orange County for a personal issue. I found your company to be professional & very helpful. Thank you for the updates, insight, and information you provided. You guys did a good job and I will recommend your private investigator company to others.”
“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.”
Names and/or locations altered for client privacy. Read more client reviews →
Where Foster City Cases Are Heard
Foster City sits roughly 4 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 Foster City 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.
Nearby Areas We Cover
Cases rarely stay inside one city limit. From Foster City, we regularly work:
Straight-line distances from Foster City.
How Hiring a Private Investigator in Foster City Works
- 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 Foster City 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 Foster City
Do you also cover San Mateo and Redwood City?
Yes. San Mateo is about 3 miles from Foster City and Redwood City about 4 miles, and both are part of our regular coverage in Northern California.
How far is Foster City from the San Mateo County courthouse?
Foster City is roughly 4 miles (straight-line) from Redwood City, the San Mateo County seat, where the main Superior Court of California, County of San Mateo facilities are. Some matters are heard at branch courthouses; your attorney can confirm the location.
What does a private investigator in Foster City 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 Foster City and across California.
How quickly can a Foster City case start?
Most cases begin within a day or two of your first call, once we agree on a plan.
Can you serve someone who is avoiding service?
Yes. We locate the person first, then time service attempts around when they are actually there, and document service for the court.
Do you handle workers’ compensation and insurance claims?
Yes. We conduct claimant surveillance and claim investigations for employers, insurers, and defense counsel.
Can you help find a runaway or missing person?
Yes. We use people-location and investigative techniques to find family members and others who have left or lost touch.
What if the investigation finds nothing?
You get an honest report that says so. A clean result still answers the question.
Ready to talk to a private investigator in Foster City? Call 1(877)PROOF-24/7 for a free, confidential consultation.