Domestic Investigative Services

I was referred to Gary Cooper by Cantey and Hanger out of Ft. Worth and I was impressed with his professional conduct and his moral character. He more than exceeded my firm's investigative requirements and we plan on using his services in the future.

As a petroleum landman since 1977, Domestic Investigative Services has been extremely important to my business in locating mineral owners that were literally impossible for me to find. Every request I have made in the last 10 years by DIS

has been fulfilled....complete with full reports and up to date information on the

individuals in the utmost timely manner. Mr. Cooper is very professional and takes great pride in his work.



Landmen as well as the oil companies would greatly benefit from his services as time is money.....and DIS would be saving both (time & money) and accomplishing

the task of locating persons in a very short time period.



Thanks DIS!



Myra Wheat, Petroleum Landman

I've known Mr. Cooper over 20 years and can state without reservation that he has the skill, integrity, reliability, and good judgment you need to be an experienced investigator.



I am certain that when you speak with him he will impress you as an articulate, confident, and well-prepared individual. I can attest to his character, strong work ethic, common sense, personal good nature, loyalty as a team player and is always easy to work with, and even tempered.



As someone who has worked with Oklahoma's largest law firm for almost 15 years, we have always been pleased with Mr. Cooper's service and fast turn-around of cases.

As a Corporate Risk Manager and former claims professional, I have been a client of Gary Cooper’s for over 20 years. He is a dedicated professional with a strong law enforcement and investigative background. He understands property and casualty insurance and what is needed to successfully dispute or deny a claim. His surveillance skills and techniques are the best in the business and I can personally attest to the fact that he “gets results”!

I owned and managed an investigations company in the Dallas-Ft Worth area for 21 years and recently retired. I discovered Gary during the last several years in business and he was the greatest blessing to me and the business. Gary was always ready, willing and able to tackle any job that came along and would stick to it until he obtained results. Gary is dependable, reliable, honest, and a great person to work with. I would highly recommend him to anyone needing investigation services, or any investigations business who needs some really good help!

Kathy Minnich-Enos

This office has used Mr. Cooper’s services for seven years in both process service for Civil cases and investigations. Mr. Cooper is very dedicated to his profession both from an ethical standpoint and in producing a timely and excellent work product. This office will continue to Mr. Cooper’s services.

I have used Gary Cooper on numerous criminal cases including death penalty litigation. He is thorough, writes excellent reports, and follows instructions. Gary also handles himself well with clients.

Gary Cooper was recommended to me and I'd like to recommend him to you. I could not find my defendant and had very little information about his whereabouts, but Mr. Cooper found him and served him with the court papers all in an afternoon. He got it done for me and probably can do the same for you. Sincerely, M. L. Allen

Dear Mr. Cooper, i would like to thank you for the fine investigative work you conducted on my behalf. Despite late hours and short notice you were able to gather the evidence necessary to guarantee a successful outcome with regard to the child custody agreement in my final divorce decree. Thank you again for your personal dedication to my domestic situation.

Best regards,

Brett C Weeks

Dear Mr Cooper,



I wanted to take the time to let you know how much we all appreciated your excellent work locating and then serving our defendant. We all knew that there wasn't much to go on and we had no case without his testimony.



Thanks from everyone,



Brent V Palmer