Your Arcadia Private Investigator for Surveillance and Investigations
Bear Witness is the private investigator in Arcadia that families, attorneys, and businesses call when they need facts, not guesses. Arcadia is a city of about 56,000 people in Los Angeles 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 Arcadia investigators plan each case around the subject’s real routine and document it with time-stamped video.
Arcadia Surveillance Investigations: Our Specialty
As a Arcadia 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
Experienced drivers who anticipate turns and freeway exits, so your subject is documented from stop to stop.
Static Surveillance
We hold position at the locations that matter to your case and record activity with time-stamped video.
Two-Investigator Teams
Team surveillance covers multiple exits and keeps a moving subject in sight in heavy Southern California traffic.
Like much of Los Angeles County, Arcadia mixes residential neighborhoods with busy commercial corridors. We combine discreet residential positioning with mobile coverage on the roads in between.
How a Arcadia Private Investigator Can Help
Whatever the situation, the work comes down to documenting the facts lawfully and clearly.
Personal Cases
- Nanny & daycare surveillance — observing caregiver conduct and advising on what in-home recording is legal.
- Infidelity & cheating spouse — a clear, factual answer for Arcadia clients who suspect a partner.
- Runaways & missing persons — finding someone who has left Arcadia or stopped answering.
Family Law Cases
- Child support — documenting employment and income the other parent may not be reporting.
- Child custody — documenting what happens during parenting time in and around Arcadia.
- Lifestyle investigations — documenting spending, activities, and lifestyle relevant to support claims.
- Divorce investigations — facts and evidence your family law attorney can use.
- Cohabitation — documenting cohabitation that can affect spousal support under Family Code 4323.
- Child visitation — documenting visitation exchanges and compliance with the court order.
Business Cases
- Business partner surveillance — verifying what a partner or associate is really doing.
- Insurance defense — surveillance and investigation for carriers and defense counsel.
- Injury claims — documenting physical activity relevant to personal injury claims.
- Employee theft — facts for Arcadia employers before they confront anyone.
- Workers’ comp fraud — surveillance on claims where activity and injuries don’t match.
Law Firm Cases
- Witness statements — locating witnesses and taking their statements.
- Records research — public and court records research to support your case.
- Evidence gathering — documentation built for the Superior Court of California, County of Los Angeles.
- Evasive subpoena service — service on people who don’t want to be found.
- Court testimony — our investigators testify to what they observed.
- Surveillance — defensible surveillance your team can rely on at trial.
The Bear Witness Difference in Arcadia
Not every Arcadia private investigator specializes in surveillance. Here is what makes Bear Witness different.
Absolute Discretion
Confidential from the first call; covert in the field.
Available 24/7
Cases don’t keep business hours. We take calls and work surveillance day, night, and weekends.
Direct Access to Your Investigator
We limit our caseload, so you talk to the investigator working your case — not a call center.
Honest Results
If nothing is going on, we tell you. A clear answer is the goal, not more billable hours.
Court-Ready Evidence
Time-stamped video, detailed reports, and investigator testimony that stand up in court.
Statewide Coverage
From Arcadia to the rest of California, we follow subjects wherever the case leads.
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!”
“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.”
“Of all the private investigators I have used, the Bear Witness Detective Agency has proven to be the only investigation company I can completely rely on and trust. When I need smart surveillance investigators who get the job done right, they are always at the very top of my call list.”
Names and/or locations altered for client privacy. Read more client reviews →
Where Arcadia Cases Are Heard
Arcadia sits roughly 23 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 Arcadia 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.
Also Serving Near Arcadia
If your subject lives in Arcadia but works or travels elsewhere, that’s routine. Nearby areas include:
Straight-line distances from Arcadia.
Working With a Arcadia 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 Arcadia 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.
Arcadia Private Investigator FAQs
Do you also cover Temple City and Sierra Madre?
Yes. Temple City is about 2 miles from Arcadia and Sierra Madre about 3 miles, and both are part of our regular coverage in Southern California.
What does a private investigator in Arcadia 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 Arcadia and across California.
Do you handle workers’ compensation and insurance claims?
Yes. We conduct claimant surveillance and claim investigations for employers, insurers, and defense counsel.
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.
Do you work with Los Angeles County attorneys?
Yes. Law firms use us for evidence gathering, surveillance, witness statements, records research, evasive subpoena service, and court testimony.
How quickly can a Arcadia case start?
Most cases begin within a day or two of your first call, once we agree on a plan.
Do I need to meet in person?
No. Most Arcadia clients handle everything by phone, from the first call to the final report.
Is surveillance legal in Arcadia?
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.
Every case starts with a free, confidential consultation. Call 1(877)PROOF-24/7 to speak with a licensed investigator about your Arcadia case.