GRI INVESTIGATIONS

Private Investigators • TSCM Services


Marc A. Garza

Agency Owner • Principal Investigator

CA. P.I. License #28059


Background and Professional Experience:

Marc is a retired police sergeant with over 25 years of experience in law enforcement, investigations, and consulting. He focuses on complex civil litigation, family law and TSCM investigations for law firms and their private clients. He has assisted legal counsel with investigations in numerous civil litigation matters at the state and federal levels. Additionally, he has conducted investigations for felony level criminal defense cases dealing with sexual assaults, homicide, gangs, and assaults with a deadly weapon ("ADW"). 


Marc developed his investigative skills, knowledge and experience from years of conducting law enforcement criminal and internal affairs investigations. As a sworn officer, he received thousands of hours of specialized investigative and legal training from various law enforcement agencies. During his over 20 years in law enforcement, he held assignments in patrol, field training ("FTO"), firearms training, Special Weapons & Tactics ("SWAT"), investigations and police supervision. 


Marc has become the "go-to" investigator for numerous law firms and clients who rely on his expertise, efficiency and experience in dealing with complex investigations. As a private investigator, he has built a network of investigative professionals and experts throughout the U.S and Latin America that can assist his clients with their investigative needs. His agency is fully insured and licensed by the State of California, under P.I. license #28059.


Marisol Flores

Investigations Manager


Background and Professional Experience:

Ms. Flores has extensive experience in case management within the private sector.  She is responsible for case intake, investigation planning, management, and client collaboration.  In her role, she manages our investigations, examines investigative files for quality control, ensures that evidence is gathered and stored properly; and that appropriate after-investigative action is taken. Additionally, she assists our investigative team with managing information from investigative databases and research for field use. Ms. Flores' attention to detail and experience in managing complex projects and investigative cases, enables our agency to maintain our high-standards and effective turnaround times for our clients.  Ms. Flores holds a Bachelor's of Science degree from the University of California, Santa Barbara. 


John S. Munoz

Lead Investigator 

CA. P.I. License #189232


Background and Professional Experience:

John S. Munoz is a licensed private investigator and has extensive experience in surveillance and field investigations. He specializes in complex investigations for civil litigation, family law and missing persons cases. As a field investigator, he utilizes advanced investigative techniques and equipment when conducting surveillance and covert operations for the purpose of locating actionable evidence for our clients. Additionally, John has assisted numerous families in locating and reuniting loved ones in missing person's cases. He is licensed in the State of California, under P.I. license #189232 and the County of San Diego under RPS #3456. He is also a proud member of the California Association of Licensed Investigators (“CALI”).