Private Investigator in Clayton, CA — Surveillance Is Our Specialty
Bear Witness is the private investigator in Clayton that families, attorneys, and businesses call when they need facts, not guesses. Clayton is a city of about 11,000 people in Contra Costa County. We are a veteran-owned, California-licensed firm (PI #18755), and surveillance is what we do best.
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 Clayton investigators plan each case around the subject’s real routine and document it with time-stamped video.
Why Surveillance Is at the Heart of Every Clayton Case
Most investigations come down to one question: what is really happening? A private investigator in Clayton answers it with surveillance video, photos, and a written timeline.
Mobile Surveillance
We follow the subject by vehicle through Clayton 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.
The average commute in Clayton is about 39 minutes, so work-related surveillance often means following a route, not waiting at one address.
What Our Clayton Private Investigators Handle
Four kinds of clients call us most — and surveillance is at the center of almost every case.
Personal Cases
- Runaways & missing persons — finding someone who has left Clayton or stopped answering.
- Infidelity & cheating spouse — a clear, factual answer for Clayton clients who suspect a partner.
- Nanny & daycare surveillance — peace of mind about who is caring for your child in Clayton.
Family Law Cases
- Lifestyle investigations — showing how someone actually lives when income or need is in dispute.
- Child support — documenting employment and income the other parent may not be reporting.
- Child visitation — observing whether visitation terms are being followed.
- Cohabitation — proof of a live-in partner when spousal support is at stake.
- Child custody — documenting what happens during parenting time in and around Clayton.
- Divorce investigations — documentation that supports your attorney’s strategy.
Business Cases
- Injury claims — verifying the extent of claimed injuries through lawful observation.
- Business partner surveillance — verifying what a partner or associate is really doing.
- Insurance defense — field work that supports a strong defense.
- Workers’ comp fraud — surveillance on claims where activity and injuries don’t match.
- Employee theft — quietly confirming suspected theft so you can respond with facts.
Law Firm Cases
- Court testimony — investigator testimony in California courts when needed.
- Witness statements — tracking down witnesses in Clayton and beyond.
- Records research — public and court records research to support your case.
- Evasive subpoena service — serving witnesses and parties who are avoiding service.
- Surveillance — time-stamped video and investigator reports for your case.
- Evidence gathering — facts collected to evidentiary standards.
Why Clayton Clients Choose Bear Witness
Choosing a private investigator in Clayton comes down to experience, discretion, and evidence that holds up.
Absolute Discretion
Confidential from the first call; covert in the field.
Honest Results
If nothing is going on, we tell you. A clear answer is the goal, not more billable hours.
Surveillance Specialists
We specialize in surveillance, so your case gets investigators who do this every day.
Available 24/7
Nights, weekends, holidays — we work when your subject is active.
Direct Access to Your Investigator
We limit our caseload, so you talk to the investigator working your case — not a call center.
Licensed & Veteran-Owned
California PI License #18755, veteran-owned and operated, held to the standards set by BSIS.
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.”
“Excellent communication, insight, and follow-through skills. Very impressed with your surveillance video. Excellent work. Thank you! Will refer to friends in need.”
“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.”
Names and/or locations altered for client privacy. Read more client reviews →
Where Clayton Cases Are Heard
Clayton sits roughly 11 miles from Martinez, the Contra Costa County seat, where the main Superior Court of California, County of Contra Costa facilities are located.
Divorce, custody, support, and civil cases involving Clayton residents are generally filed in the Superior Court of California, County of Contra Costa. We document every case with that courtroom in mind: dated, time-stamped, gathered legally, and backed by testimony if needed.
About 90% of Clayton households own their homes. Stable, quiet neighborhoods mean residents notice unfamiliar cars, so residential surveillance here takes careful positioning.
Nearby Areas We Cover
If your subject lives in Clayton but works or travels elsewhere, that’s routine. Nearby areas include:
Straight-line distances from Clayton.
Working With a Clayton 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 Clayton 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.
Clayton Private Investigator FAQs
Do you also cover Concord and Walnut Creek?
Yes. Concord is about 4 miles from Clayton and Walnut Creek about 7 miles, and both are part of our regular coverage in Northern California.
What does a private investigator in Clayton 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 Clayton and across California.
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.
Is surveillance legal in Clayton?
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.
Do you work with Contra Costa County attorneys?
Yes. Law firms use us for evidence gathering, surveillance, witness statements, records research, evasive subpoena service, and court testimony.
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.
How quickly can a Clayton case start?
Most cases begin within a day or two of your first call, once we agree on a plan.
Ready to talk to a private investigator in Clayton? Call 1(877)PROOF-24/7 for a free, confidential consultation.