It’s been 175 years since Allan Pinkerton founded what became the Pinkerton National Detective Agency to tighten a widening gap in reliable, professional security and investigative services—especially for railroads and express companies—at a time when public law enforcement was fragmented, under-resourced, and limited by jurisdiction. Criminals knew just how to exploit that gap. Allan’s own rise from exposing a local counterfeiting ring to serving as a deputy sheriff and city detective convinced

Allan Pinkerton