Started by Allan Pinkerton in 1850, the Pinkerton Detective Agency grew so large that it became, at one point in history, the biggest private law enforcement organization in the world. It gained notoriety for being a muscle-for-hire service to industrialists who wanted to deal with pesky strikers and unionists. However, it also handled some thrilling cases where Pinkertons took on some of America’s most infamous criminals.
This is an encore of a previous list, as presented by our YouTube host Simon Whistler. Read the full list here!
