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A Diligent Theory Blog

Do Private Investigators Need to be Licensed 2020

Do private investigators need to be licensed in the United States? In short, in 45 of the 50 states, the answer is yes.

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Private Investigator Hired to Follow Private Investigator

What happens when a private investigator is hired to follow another private investigator? In April 2018, private investigator Brian Willingham was followed by …

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Risk of Hiring Private Investigator

There are some inherent risks of hiring a private investigator that you may have never thought about. In this post we discuss …

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Best Private Investigator Movies

I’m a movie buff as well as a private investigator. Now that I (and the rest of the world) have been trapped at home for over a month, I thought it would be a good idea to unveil the list of my favorite private investigator movies. While there are well-known classics on the list, such […]

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After the Pandemic: The One Thing Private Investigators Must Do

Certain things are the same: Business changes. Times change. And now, in a worldwide pandemic, everything is about to change again.

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“One of the absolute best blogs in the investigative industry.” ~ Hal Humphreys, Pursuit Magazine