Litigation Support Services

Take action to substantiate your case or lawsuit.

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.

Martin Investigative Services

We can provide the following services to support your case:

  • Advice on choosing legal representation
  • Surveillance
  • Witness interviews
  • Anonymous data gathering
  • Asset searches
  • Public information searches
  • Liaison to local authorities
  • Depositions
  • Background checks

Why choose Martin Investigative Services for litigation support?

Often, these are services that a law firm often 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.

We can help you find the right resources, protect your children's 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.

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.

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.

National investigation services, California offices

Martin Investigative Services offers full-service investigation for corporations, businesses, celebrities, and other individuals across the United States and abroad. We are headquartered in Orange County, California, with offices in Newport Beach and Mission Viejo. We also have offices in Los Angeles and San Diego. Read more about Martin Investigative Services.


  • Surveillance: Marital, Workers Comp, Insurance
  • Unsolved Crime and Cold Cases
  • Asset and Background Information Searches
  • Locating Friends and Family

Martin Investigative Services

(800) 577-1080 • (949) 644-2200

State License # PI 9077

Orange County, California offices:
Newport Beach: 620 Newport Center Drive, Suite 1030, Newport CA 92660 • Google MapYahoo Map
Mission Viejo: 25909 Pala, Suite 300, Mission Viejo CA 92691 • Google MapYahoo Map

Other office locations:
Los Angeles: 1880 Century Park East, Suite 618, Los Angeles CA 90067 • Google MapYahoo Map
San Diego: 302 Washington, Suite 247, San Diego CA 92103 • Google MapYahoo Map