Back in the day, there was no United States Secret Service to chase down counterfeit money or protect the President. But there was a man named Allan Pinkerton. He was a Scottish American who served as a spy. He would later use his skills to start a detective organization called Pinkerton National Detective Agency. Pinkerton Security became outstanding trackers and are recognized for their innovations and tactics; including Undercover work (involving security and law enforcement).
Pinkerton grew his company into the most respected Detective and Security Agency of his day. He was even awarded government contracts for his company. His Company transported currency and serviced the Mint. Eventually his company would provide security to the President. Both of these functions would become tasks of the Secret Service after the Federal government took over this role.
With the motto of “We Never Sleep“, an eye symbol in the middle of the Pinkerton logo, is widely recognized as the origin of the term “Private Eye”. Pinkerton’s were hired to not only, secure banks, protect Presidents, to chase down train robbers, horse thieves, and capture Outlaws such as Jesse James (which they did not manage to accomplish). Pinkerton were sometimes ruthless and would become specifically banned to work for government with the “Anti-Pinkerton Act” of 1893. They survive today… but are a mere shell of the organization they once were. Perhaps they require some new leadership.