The First Detective: The Life and Revolutionary Times of Vidocq
James Morton2004

Back cover : "In the summer of 1809, Eugène-François Vidocq, future spy, private eye and presidential candidate, was between a rock and a hard place. He had been on the run from the convict ship at Brest for nearly nine years and was now being threatened and blackmailed not only by his former colleagues, but by his in-laws.

The only option left was to try and arrange a bargain with the police. He went unannounced to the rue de Jerusalem, a small road on the darkly mysterious Ile de la Cité, to see Jean Henry, head of the criminal department, known to Parisian criminals as the Bad Angel, and put to him an unusual proposition..."

Titre original : The First Detective: The Life and Revolutionary Times of Vidocq (2004)