The legend of Vidocq.

Eugène-François Vidocq. NYPL

Over on the Public Domain Review, Daisy Sainsbury delves into the legend of Eugène-François Vidocq (1775–1857), the head of the Sûreté whose tumultuous life included a criminal past and work in law enforcement, forensics, private investigation, and prison reform. He also achieved literary fame as the author of wildly popular memoirs.