Walnut Creek Private Investigator Services, Built Around Surveillance
If you need a private investigator in Walnut Creek, Bear Witness has been documenting the truth for California clients since 1996. Walnut Creek is a city of about 70,000 people in Contra Costa County. Surveillance is our specialty, and every case is handled by a licensed investigator — never a call center.
From infidelity and custody cases to workers’ compensation fraud and litigation support, we keep our caseload small so every Walnut Creek client works directly with the investigator in the field — and gets a clear answer, documented to the standard California courts expect.
Surveillance Specialists Serving Walnut Creek
Most investigations come down to one question: what is really happening? A private investigator in Walnut Creek answers it with surveillance video, photos, and a written timeline.
Mobile Surveillance
We follow the subject by vehicle through Walnut Creek 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
Team surveillance covers multiple exits and keeps a moving subject in sight in heavy Northern California traffic.
The average commute in Walnut Creek is about 33 minutes, so work-related surveillance often means following a route, not waiting at one address.
What Our Walnut Creek Private Investigators Handle
Whatever the situation, the work comes down to documenting the facts lawfully and clearly.
Personal Cases
- Infidelity & cheating spouse — discreet surveillance that gives you a clear answer, either way.
- Runaways & missing persons — locating family members and loved ones who have left or lost touch.
- Nanny & daycare surveillance — documenting how a caregiver treats your child, within California privacy law.
Family Law Cases
- Child custody — facts that help a court decide what is best for your child.
- Cohabitation — documenting cohabitation that can affect spousal support under Family Code 4323.
- Child support — identifying undisclosed work or income when support is in question.
- Child visitation — documenting visitation exchanges and compliance with the court order.
- Divorce investigations — facts and evidence your family law attorney can use.
- Lifestyle investigations — what someone’s day-to-day life really looks like.
Business Cases
- Insurance defense — surveillance and investigation for carriers and defense counsel.
- Injury claims — showing what a claimant can really do.
- 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 Contra Costa County.
Law Firm Cases
- Records research — the records behind the story.
- Evidence gathering — facts collected to evidentiary standards.
- Court testimony — our investigators testify to what they observed.
- Witness statements — tracking down witnesses in Walnut Creek and beyond.
- Surveillance — time-stamped video and investigator reports for your case.
- Evasive subpoena service — serving witnesses and parties who are avoiding service.
What Sets Our Walnut Creek Investigators Apart
Choosing a private investigator in Walnut Creek comes down to experience, discretion, and evidence that holds up.
Statewide Coverage
From Walnut Creek to the rest of California, we follow subjects wherever the case leads.
Honest Results
We report what we observed — no stretching thin evidence to justify a case.
Court-Ready Evidence
Time-stamped video, detailed reports, and investigator testimony that stand up in court.
Direct Access to Your Investigator
One investigator from your first call to your final report, with updates along the way.
Licensed & Veteran-Owned
California PI License #18755, veteran-owned and operated, held to the standards set by BSIS.
Available 24/7
Cases don’t keep business hours. We take calls and work surveillance day, night, and weekends.
What Our Clients Say
Real reviews from Bear Witness clients across California.
“James, thank you for stepping in and helping out our law firm! You came highly recommended to us by a colleague as the go-to-guy for all things surveillance. Good communication skills & excellent work!”
“I can’t believe you got the evidence so quickly! Something that had been bothering me for 2 years was put to rest after one day of your surveillance. I finally have the truth in my hands and can move on with my life now.”
“Wow. Outstanding job! I really did get lucky when I picked you guys. I don’t think any other private investigator could have handled my case better than you did. Very on top of your game, from start to finish. Excellent work!”
Names and/or locations altered for client privacy. Read more client reviews →
Where Walnut Creek Cases Are Heard
Walnut Creek sits roughly 8 miles from Martinez, the Contra Costa County seat, where the main Superior Court of California, County of Contra Costa facilities are located.
If your Walnut Creek matter ends up in the Superior Court of California, County of Contra Costa, 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 Walnut Creek, we regularly work:
Straight-line distances from Walnut Creek.
How Hiring a Private Investigator in Walnut Creek 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 Walnut Creek 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.
Walnut Creek Private Investigator FAQs
Do you also cover Alamo and Pleasant Hill?
Yes. Alamo is about 4 miles from Walnut Creek and Pleasant Hill about 4 miles, and both are part of our regular coverage in Northern California.
How far is Walnut Creek from the Contra Costa County courthouse?
Walnut Creek is roughly 8 miles (straight-line) from Martinez, the Contra Costa County seat, where the main Superior Court of California, County of Contra Costa facilities are. Some matters are heard at branch courthouses; your attorney can confirm the location.
What does a private investigator in Walnut Creek 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 Walnut Creek and across California.
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 Walnut Creek case start?
Most cases begin within a day or two of your first call, once we agree on a plan.
How do I verify your license?
Look up PI License #18755 on the California Department of Consumer Affairs license search.
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.
Is surveillance legal in Walnut Creek?
Yes, when done correctly. California allows observation in public places where there is no reasonable expectation of privacy. Our investigators do not trespass, use hidden vehicle trackers, or record private conversations.
Ready to talk to a private investigator in Walnut Creek? Call 1(877)PROOF-24/7 for a free, confidential consultation.