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A Diligent Theory Blog

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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Find Long Lost Friend Relative

In the era of the internet, finding a long-lost friend or relative often can be done easily and at a low cost. But to locate people who are flying under the digital radar, you may need to use some advanced methods to track them down. As a last resort, you may need to hire a […]

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Open Source Training with Henk Van Ess

Henk van Ess has been on my radar for the past few years. He’s a former investigative journalist who’s morphed himself into a social media investigative guru. He’s done work with a bunch of major media outlets and worked as a trainer and contributor to Bellingcat (a group of open source journalist nerds), but these […]

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