What We Do

BERESFORD INVESTIGATIONS is retained by attorneys and other persons that need expert assistance with investigations regarding Criminal & Civil matters. We offer a full range of services that are designed to help you achieve the very best result.  No investigation is too big or too  small - we've got you covered.  Our services are available a la carte so  you can get exactly what you need. 


Expert Analysis

 Each  investigation is unique.  We will never use a one-size-fits-all  approach. We will closely examine your situation and develop a strategy  that addresses your individual needs and situation.   


Strategies that Work

We  will provide you and/or your attorney with the tools necessary to  create a plan to secure the very best outcome and minimize your  exposure.  We deliver custom solutions specifically designed to meet  your one-of-a-kind 

challenges head on. 


Mr. Beresford is a retired deputy sheriff and a United States Marine Corps veteran. He currently serves as Governor of the East Bay District of the California Association of Licensed Investigators.


Investigators at BERESFORD INVESTIGATIONS regularly attend seminars and training events that are sponsored by the organizations below to enhance their knowledge and skill set.




The founders of NCISS saw the need for security and investigation businesses to keep Congress and the Administration informed of their interests. They saw that without representation, our government would at the minimum overlook us, or legislate against us without consideration of the consequences.

It is the Council’s job to keep our legislators aware of the interests of the hundreds of thousands of professional security officers and the businesses which employ them.

A cornerstone of American jurisprudence is a court system with documented records open to inspection by every citizen.  NCISS is dedicated to keeping it that way.  NCISS opposes record closure.


 The California Public Defenders Association (CPDA) is a nonprofit organization that serves as a resource center for its members who are all criminal defense attorneys - both private attorneys who practice criminal defense in California, and public defenders who are criminal defense attorneys employed by local county public defender agencies. The organization was formed over 40 years ago and today provides numerous on-site training programs through the year and in different locations held throughout the state of California, all designed exclusively for criminal defense attorneys who practice in California. Together, the two groups of criminal defense attorneys (private defenders and public defenders) comprise the membership of CPDA, which totals over 3,400 practicing criminal defense attorneys in California, in particular, but the membership is open to criminal defense attorneys in other states and several hundred from throughout the U.S. are associate members of CPDA. 


 In 1966, Investigators from various California Public Defender offices created the Defense Investigators Association (DIA).  DIA conducts professional training in the area of criminal defense. Annual seminars and the Defense Investigators Training Academy (DITA) offer training opportunities in a variety of investigative subjects.


The California Association of Licensed Investigators, Inc. is a not‐for‐profit professional organization founded in 1968 to protect and enhance our licensed private investigator and licensed private patrol operator members.   CALI’s works in support of the ability of clients, often either a consumer or a victim, by performing legitimate investigations within the parameters and boundaries established in law. Our members are licensed and regulated by the Department of Consumer Affairs, Bureau of Security and Investigative Services. 


Mr. Beresford has also attended training events organized and presented by the California Peace Officers Standards & Training Commission (POST) and has earned Basic and Intermediate Certificates.


Curiculum Vitea (pdf)