The Pinkerton Method

CBS Radio Mystery Theater "The Pinkerton Method" is a Mystery from Wednesday, November 23, 1977.

The true story of the first private detective force in the United States. A Rock Island train carrying $22,000 in cash is robbed, and the express car's agent murdered. William Pinkerton, son of the founder of the Pinkerton National Detective Agency and a passenger on the train, agrees to track down the guilty. After leaving for a few days to investigate another train robbery, he returns to the Rock Island case to put to work, in a seemingly casual manner, the Pinkerton Method: "diligence, doggedness, studying character, knowing your man."