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J Greg Lewis Investigative Services


The owner and qualified manager, James 'Greg' Lewis, has worked in California law enforcement for more than twenty-two years. He worked for sixteen years as a Deputy Sheriff, in a medium sized Central California department where he attained the rank of Sergeant. His career included two years as a narcotic investigator, three years as a homicide detective (investigating 25 homicides - two capitol cases), thirteen years on Special Weapons and Tactics (SWAT), and was a department range master and use of force instructor. He also worked two years as a District Attorney Investigator where he specialized in gangs and violent crimes. Finally, he worked as a Special Agent for the California Department of Justice, Bureau of Gambling Control, which provided further experience with tribal gaming, card rooms, and all aspects of financial crimes investigations. In addition, he is well versed in surveillance, intelligence, and use of technical equipment. As a seasoned law enforcement investigator, he has considerable courtroom experience, and understands court procedures as well as rules of evidence. As a law enforcement instructor, he taught the concepts of vehicle operations, use of force, and search for missing persons.

Furthermore, Greg Lewis has been a duly licensed Private Investigator, by the State of California, Bureau of Security and Investigative Services, since 2004. J Greg Lewis Investigative Services exemplify integrity and quality of service. Working under the guidance of the owner's mission statement, we endeavor to provide the highest quality customer service.

Please review our site and services. We encourage questions and inquiries. Please contact us with your investigative needs. CERTIFICATES AND SKILLS:

BSIS - License Private Investigator (#24358) 2004-present
BSIS - Guard Card (#1803862) 2012-Present
BSIS - Firearm Permit (#278264) 2012-Present

REGISTERED PROCESS SERVER - Tehama County (2013 - Present)
POST - Supervisory Certificate
POST - Advanced Certificate
POST - Intermediate Certificate
POST - Basic Certificate
POST - Background Investigation
POST - Officer Involved Shooting and Police Discipline
POST - Force Options/Use of Force Instructor
POST - Firearms Instructor/Range Master
POST/FBI - Chemical Agent Instructor
POST - SWAT Course & SWAT Team Leader Course 
POST Academy, Advanced Officer, and College Adjunct Instructor


Professional Affiliations

(Past & Present)


“Honesty, Integrity, Perseverance, and Dedication on the never ending quest of superior service – our promise to you, the customer.”

                                          Greg Lewis, Qualified Manager