Your Los Angeles Private Investigator for Surveillance and Investigations
Looking for a private investigator in Los Angeles? Bear Witness Private Investigators is a California-licensed firm (PI #18755) that has specialized in surveillance since 1996. Los Angeles is a city of about 3.86 million people in Los Angeles County, and it is part of our regular coverage across Southern California.
From infidelity and custody cases to workers’ compensation fraud and litigation support, we keep our caseload small so every Los Angeles client works directly with the investigator in the field — and gets a clear answer, documented to the standard California courts expect.
Los Angeles Surveillance Investigations: Our Specialty
As a Los Angeles 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.
At roughly 8,200 people per square mile, Los Angeles is dense — tight parking, slow traffic, and subjects who often move on foot. Our investigators plan for that.
How a Los Angeles Private Investigator Can Help
Four kinds of clients call us most — and surveillance is at the center of almost every case.
Personal Cases
- Runaways & missing persons — people-location work to find someone who has gone missing or run away.
- Infidelity & cheating spouse — documenting where a partner goes and who they meet, without them knowing.
- Nanny & daycare surveillance — peace of mind about who is caring for your child in Los Angeles.
Family Law Cases
- Child support — uncovering unreported work that affects support.
- Divorce investigations — facts and evidence your family law attorney can use.
- Child visitation — observing whether visitation terms are being followed.
- Cohabitation — evidence of a supported spouse living with a partner, relevant to support.
- Lifestyle investigations — what someone’s day-to-day life really looks like.
- Child custody — facts that help a court decide what is best for your child.
Business Cases
- Insurance defense — surveillance and investigation for carriers and defense counsel.
- Workers’ comp fraud — comparing a claimant’s real activity to reported restrictions.
- Injury claims — verifying the extent of claimed injuries through lawful observation.
- Business partner surveillance — answers before you sign or after trust breaks down.
- Employee theft — facts for Los Angeles employers before they confront anyone.
Law Firm Cases
- Records research — the records behind the story.
- Surveillance — time-stamped video and investigator reports for your case.
- Court testimony — investigator testimony in California courts when needed.
- Witness statements — tracking down witnesses in Los Angeles and beyond.
- 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.
Why Los Angeles Clients Choose Bear Witness
Choosing a private investigator in Los Angeles comes down to experience, discretion, and evidence that holds up.
Direct Access to Your Investigator
We limit our caseload, so you talk to the investigator working your case — not a call center.
Court-Ready Evidence
Time-stamped video, detailed reports, and investigator testimony that stand up in court.
Available 24/7
Cases don’t keep business hours. We take calls and work surveillance day, night, and weekends.
Absolute Discretion
Confidential from the first call; covert in the field.
Honest Results
We report what we observed — no stretching thin evidence to justify a case.
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.
“Excellent communication, insight, and follow-through skills. Very impressed with your surveillance video. Excellent work. Thank you! Will refer to friends 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.”
“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 Los Angeles Cases Are Heard
Los Angeles is the Los Angeles County seat, so the main Superior Court of California, County of Los Angeles facilities are close by.
If your Los Angeles matter ends up in the Superior Court of California, County of Los Angeles, documentation quality decides whether the evidence helps. We keep chain-of-custody records and write reports in plain chronological order.
About 64% of Los Angeles households rent, and renters move more often — so for process serving and people-location work, we verify a subject’s current address before the first attempt.
Nearby Areas We Cover
Cases rarely stay inside one city limit. From Los Angeles, we regularly work:
Straight-line distances from Los Angeles.
How Hiring a Private Investigator in Los Angeles 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 Los Angeles 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 Los Angeles
Do you also cover Culver City and West Los Angeles?
Yes. Culver City is about 1 mile from Los Angeles and West Los Angeles about 2 miles, and both are part of our regular coverage in Southern California.
What does a private investigator in Los Angeles 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 Los Angeles and across California.
Is everything I tell you confidential?
Yes. Your case is handled by your assigned investigator and never discussed with anyone outside the firm.
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.
How do I verify your license?
Look up PI License #18755 on the California Department of Consumer Affairs license search.
How is a Los Angeles investigation priced?
Surveillance is billed by time. After a free consultation, you get a written estimate before any billable work begins.
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.
Do you handle workers’ compensation and insurance claims?
Yes. We conduct claimant surveillance and claim investigations for employers, insurers, and defense counsel.
Every case starts with a free, confidential consultation. Call 1(877)PROOF-24/7 to speak with a licensed investigator about your Los Angeles case.