#1 Rated Top Online
Private Investigator Training School
Become a Private Investigator
 in just 3-6 months
Study at home . . . no classroom needed
 
Succeed With DTI

BBBNationally endorsed. We are the Official PI School in the U.S. DTI is rated by experts as the #1 top online program in the certification of private investigators. We are the recruiters’ choice.

Top credentials. With DTI staff, you can be confident that you’re learning from the best and most experienced instructors from the field.  DTI has offered over 24 years of unsurpassed excellence in professional training. The most successful graduates. More DTI graduates are employed as private investigators — or have started their own PI agencies — than any other PI school’s graduates. Why?  DTI places a high premium on setting high standards in instructional design that delivers the most effective training. Armed with the latest cutting-edge investigative techniques and business skills, you too will succeed with DTI!


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A CAREER AS A PI IS THE HOTTEST CAREER TODAY
Working as a private investigator (PI) is interesting, exciting, and intriguing, which makes it one of the hottest careers for men and women today. Even with today’s struggling economy, there is no downturn for PIs. The escalation in crimes, fraud, and identity theft means a high demand in the job market for skilled, properly trained PIs. You can either become a specialist and focus your expertise exclusively on areas such as criminal defense, product liability, insurance fraud, and accident reconstruction, or you can become a generalist and work cases ranging from marital/custody to skip-tracing to high-tech intelligence gathering for multi-national corporations. The choice is yours.
 

IT'S EASY TO GET THE TRAINING YOU NEED
DTI teaches you all the essential skills that you need to become a qualified private investigator with no long training programs or college classes to attend. In just three to six months, you can turn your passion into an exciting new career and begin solving cases. Very few careers have such short but effective training programs. Today, most worthwhile careers require years of education and training and then offer only limited opportunities to enter the field after graduation. With DTI, you can immediately apply your new skills to a new career in private investigation or to advance your current career as a PI.
 

WHY DTI IS THE CHOICE OF PROFESSIONALS
DTI is one of the most trusted names in PI training. DTI offers over 24 years of experience training thousands of men and women in the principles of investigation. You’ll learn how to conduct quick, efficient investigations, build airtight cases that can withstand legal challenges in court, and begin building your reputation as a professional and ethical PI.
 

CONDUCT REAL FIELD ASSIGNMENTS
With DTI’s careful guidance, you will engage in foot and vehicle surveillances, conduct real background checks, run criminal histories and license plate checks, trace telephone numbers, and access special PI databases.
 

EASILY QUALIFY FOR A NEW JOB AS A DTI GRADUATE
Whether this is your first career or you are an experienced PI seeking to update your current skills, DTI gives you the edge to compete successfully in today's job market and expand your career options.
What Our Graduates Say . . .
"The comprehensive Master Detective Course went above and beyond my greatest expectations. With the help of DTI training, I was able to expand my investigation business. The lessons were very intriguing and extensively detailed and the Detective Field Exercises were not only challenging but provided practical, hands-on training that was very realistic. No other school offers these! Absolutely the best course I have ever taken and at a very reasonable price. Thank you Mr. Kassel and your staff at DTI."

Joe Gillis, Gillis Investigative Service
Gulfport, MS - joegillis007@yahoo.com


Private Investigator

Our Credentials
We are proud to say that you won't find a better course, with better credentials - anywhere!
  • DTI meets high professional standards and operates with strict business ethics.
  • Mr. Kassel, the founder of DTI, was a State Licensed Private Investigator with more than 30 years of experience and a member of the California Association of Licensed Investigators (CALI). View Resume

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