French police official (1775-1857) whose crime-solving techniques served as patterns for private detective agencies. He nowadays is considered by historians as the ‘father’ of modern criminology. Scarce ALS in French, signed “Vidocq,” one page, 5 x 8, April 1. Letter to an unidentified gentleman. In part (translated): “My client accuses me of negligence. Please let me know when you will put me in a position to terminate an affair which will turn out badly because of the delay.” In very good condition, with intersecting folds, some paper loss and mounting remnants along left edge, a bit of light soiling, and a catalog number written along the bottom edge. RR Auction COA.
