San Dimas Private Investigator Services, Built Around Surveillance
Looking for a private investigator in San Dimas? Bear Witness Private Investigators is a California-licensed firm (PI #18755) that has specialized in surveillance since 1996. San Dimas is a city of about 34,000 people in Los Angeles County, and it is part of our regular coverage across Southern 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 Dimas investigators plan each case around the subject’s real routine and document it with time-stamped video.
Surveillance Specialists Serving San Dimas
As a San Dimas 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 San Dimas 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.
Every San Dimas surveillance plan is built around where your subject actually lives, works, and spends time — not a generic template.
How a San Dimas Private Investigator Can Help
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 — finding someone who has left San Dimas or stopped answering.
- Nanny & daycare surveillance — observing caregiver conduct and advising on what in-home recording is legal.
Family Law Cases
- Divorce investigations — evidence for Los Angeles County family court, documented properly.
- 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 visitation — observing whether visitation terms are being followed.
- Child support — uncovering unreported work that affects support.
- Lifestyle investigations — what someone’s day-to-day life really looks like.
Business Cases
- Injury claims — documenting physical activity relevant to personal injury claims.
- 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 — verifying what a partner or associate is really doing.
Law Firm Cases
- Records research — public and court records research to support your case.
- Court testimony — our investigators testify to what they observed.
- Witness statements — tracking down witnesses in San Dimas and beyond.
- Surveillance — defensible surveillance your team can rely on at trial.
- Evasive subpoena service — serving witnesses and parties who are avoiding service.
- Evidence gathering — court-ready documentation for litigation.
The Bear Witness Difference in San Dimas
Not every San Dimas private investigator specializes in surveillance. Here is what makes Bear Witness different.
Statewide Coverage
From San Dimas to the rest of California, we follow subjects wherever the case leads.
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.
Absolute Discretion
Confidential from the first call; covert in the field.
Court-Ready Evidence
Time-stamped video, detailed reports, and investigator testimony that stand up in court.
Surveillance Specialists
We specialize in surveillance, so your case gets investigators who do this every day.
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!”
“Excellent communication, insight, and follow-through skills. Very impressed with your surveillance video. Excellent work. Thank you! Will refer to friends in need.”
“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.”
Names and/or locations altered for client privacy. Read more client reviews →
Where San Dimas Cases Are Heard
San Dimas sits roughly 35 miles from Los Angeles, the Los Angeles County seat, where the main Superior Court of California, County of Los Angeles facilities are located.
Divorce, custody, support, and civil cases involving San Dimas residents are generally filed in the Superior Court of California, County of Los Angeles. We document every case with that courtroom in mind: dated, time-stamped, gathered legally, and backed by testimony if needed.
About 71% of San Dimas households own their homes. Stable, quiet neighborhoods mean residents notice unfamiliar cars, so residential surveillance here takes careful positioning.
Also Serving Near San Dimas
Cases rarely stay inside one city limit. From San Dimas, we regularly work:
Straight-line distances from San Dimas.
How Hiring a Private Investigator in San Dimas Works
- 1
Call Us
A short, private conversation about your situation, with no obligation.
- 2
Strategy
We decide when and where surveillance in and around San Dimas is most likely to answer your question.
- 3
Fieldwork
One investigator handles your case from start to finish.
- 4
Results
Documented findings in plain language — including a clear “nothing found” when that is the truth.
Questions About Hiring a Private Investigator in San Dimas
Do you also cover La Verne and Glendora?
Yes. La Verne is about 2 miles from San Dimas and Glendora about 3 miles, and both are part of our regular coverage in Southern California.
How far is San Dimas from the Los Angeles County courthouse?
San Dimas is roughly 35 miles (straight-line) from Los Angeles, the Los Angeles County seat, where the main Superior Court of California, County of Los Angeles facilities are. Some matters are heard at branch courthouses; your attorney can confirm the location.
What does a private investigator in San Dimas 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 Dimas and across California.
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.
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 do I verify your license?
Look up PI License #18755 on the California Department of Consumer Affairs license search.
How quickly can a San Dimas 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.
Ready to talk to a private investigator in San Dimas? Call 1(877)PROOF-24/7 for a free, confidential consultation.