NAVIGATION

Litigation Support Services

Investigators that take action to substantiate your case or lawsuit with proof.

Our investigative services can be crucial in establishing the facts surrounding a legal case. We provide legal support services in conjunction with your legal representation as a cost-effective means of substantiating your case and increasing your odds of winning.

This strategy is effective for criminal cases, civil suits, divorce proceedings, and child custody. With this much on the line, it's worth a few minutes to call, and we are always happy to provide confidential and free consultations with no-obligation to you.

How our private investigators assist law firms:

How we help
Services
Video
  • Want to win your case?
    Our private investigators are ready to help you discover the proof you need.


    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.

    Substantiate your case.

    Often, these are services that a law firm cannot provide. We work closely with your lawyers to understand their litigation strategy, determine how best to build an effective legal case, and take actions to substantiate your case or lawsuit. Our experienced private investigators are well trained to interview potential witnesses and take their depositions. Our participation in the process can often make the difference between winning and losing a case.

    Experience with all types of cases.

    We can help you find the right resources, protect your childrens' best interests, and reach amicable settlements in divorce cases. Our consulting services cover every facet of Family Law including paternity actions, child visitation rights, child support payments, alimony, joint custody, and enforcement of judgments.

    Experience with all types of law.

    We have working relationships with some of the most respected legal firms in Southern California and across the country. We will provide you with information and advice on legal firms that specialize in your area of need, including Criminal Defense, Family Law, Employment Law, Corporate Litigation, and Civil Law. We maintain a list of the best law firms in each specialty based on effectiveness, client satisfaction, and integrity.

    Consulting and expert witnesses.

    We also offer consulting and expert witness testimony for both criminal and civil trials in matters pertaining to our core competencies of investigation and corporate security. As former Federal agents, our private investigators have a great deal of experience in state and Federal courts and are recognized as highly credible experts in their respective fields.

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

  • Litigation support services we provide for law firms:

    We can provide the following services to support your case:

    Martin Investigative Services

    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 litigation support services? 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.

Call us now



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: Private Investigation

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: