NAVIGATION

Unsolved Crime & Cold Cases

Our private investigators help fill in the details and shed new light on cold cases.

In unsolved crime cases, the private investigators at Martin Investigative Services assist clients by helping them fill in the details surrounding a case. In the past, our investigators have been brought in on many high-profile murder, kidnapping, rape, stalker and felony crime investigations.

With expertise that comes from decades of service as former Federal agents, we can provide unique insight to help bring resolution to unsolved crimes. We can help uncover new leads, review existing work by local authorities, and develop new theories in an effort to uncover the truth.

How our private investigators can help with your cold case:

How we help
Video
  • Feel as if your case is hopelessly stuck?
    Our private investigators are ready to help you take another look.


    Martin Investigative Services: Local, National, International

    Martin Investigative Services: Local, National, International

    Martin Investigative Services (State License # PI 9077) is a licensed private investigation agency. Whether you choose us or another firm, always make sure your firm is licensed and legitimate.

    Our investigators have vast experience in the following areas:

    • Developing new theories
    • Identifying new leads
    • Substantiating the sequence of events
    • Interviewing witnesses
    • Interacting with local authorities
    • Crime scene investigation
    • Forensic analysis
    • Video forensics
    • Audio forensics

    Former Federal Agents review your case.

    With over 40 years of experience, Martin Investigative Services is comprised of former supervisory Federal agents of the DEA, FBI, IRS, and Secret Service. We'll meet with you at the location of your choice and your services will be kept in our confidence only.

    A fresh perspective.

    While the odds of successful resolution decrease as time passes, many times a fresh perspective on a cold case will lead in new directions that will contribute to an increase in understanding or eventual resolution.

    Email us or call (800) 577-1080 for a FREE consult.

  • Email us or call (800) 577-1080 for a FREE consult.

Why choose Martin Investigative Services for unsolved crime & cold cases? Here's why:

Martin Investigative Services has over 40 years of private investigation experience.
Martin Investigative Services has over 40 years of private investigation experience.

40+ years experience.


High success rate.



We provide quality investigative services with an unmatched success rate. We provide you with confidence and peace of mind.

Call us now

Our private investigators are former DEA, FBI, IRS, and Secret Service agents.
Our private investigators are former DEA, FBI, IRS, and Secret Service agents.

Former Federal agents.


Experience & Training.



Our network is composed of private investigators that are former DEA, FBI, IRS, and Secret Service agents.

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Free consultations for private investigation.
Free consultations for private investigation.

Free consultation.


No risk.



Our friendly staff can help with your issue, or point you in the right direction. The consult is free and confidential.

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Expert private investigation yields evidence that holds up in court.
Expert private investigation yields evidence that holds up in court.

Court-admissable.


Evidence that stands up.



Our experienced investigators provide court-admissible evidence that can make all the difference in a trial.

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Press: Private Investigation

Orange Coast Magazine

Adventures in Private Investigating



Newport Beach P.I. Thomas Martin is a man with a calling.

By Sarah Mosqueda

Read the full article


The Wall Street Journal

One Tough Day for Two-Timers



By Nancy Keates

Read the full article


Los Angeles Times

Q&A with Thomas G. Martin



Today's job applicant may be hiding a past of thievery and folly.

By Anne Michaud

Read the full article

Case Study: Unsolved Crime

Private Investigation Case Study

Orange County Murder Cold Case



We first met our client through a conference call with the client's family and their attorney, a prominent Orange County attorney.

The client strongly believed that her friend was shot and murdered by her husband. Local police had concluded the case was an accidental shooting.

Results:
After a 9-month investigation, our private investigators gathered enough evidence to prove our client's suspicions were correct. We turned our evidence over to the Orange County District Attorney and the husband was arrested.

Martin Investigative Services has investigated hundreds of cold cases like this one. If you need our help, please contact one of our private investigators us for a free, private consultation.

Read more

Contact us for a free quote


  • See more benefits we offer you. Tap here.

    See more benefits we offer you. Click here.


Office Locations

We have four California offices: two offices in Orange County, one in Los Angeles, and one in San Diego: