0:00 By 1820, Eugène Vidocq’s plainclothes security brigade had a roster of twenty-eight agents.0:08 Nearly all of them were ex-convicts.0:11 This web of shadows was his greatest weapon, the very tool he used to finally corner the elusive rival we followed into the Parisian darkness last week.0:24 But it began years earlier, in a room thick with the smell of stale wine and desperation.0:32 Imagine Vidocq, not in a pristine office, but in the back room of a grimy tavern.0:40 He isn't interrogating a suspect under a bright light.0:44 He's sharing a bottle with him.0:47 He’s listening.0:49 This man across the table isn't a colleague.0:52 He’s a forger, a pickpocket, a man Vidocq himself may have once put away.0:59 And Vidocq is offering him a deal.1:02 Work for me.1:03 Tell me what you hear on the street, who’s planning what.1:08 In return...1:09 you get protection.1:11 You get paid.1:12 You get a second chance, of a sort.1:15 This was the foundation of the Sûreté, the world's first national detective agency.1:23 It wasn't built on procedure and protocol.1:26 It was built on secrets and bargains made in the dark.1:31 His agents were murderers, thieves, and spies.1:35 The underworld called them les moutons—the sheep.1:40 But they were wolves.1:42 And Vidocq was their alpha.1:44 He created the first criminal database on index cards, detailing habits, associates, and methods.1:53 He pioneered undercover work not as a rare tactic, but as a daily STRATEGY.1:59 While the official police were marching in uniform, Vidocq’s men were dealing cards in gambling dens, working the docks, and drinking with the very crews they planned to dismantle.2:15 It was revolutionary.2:17 It was also deeply corrupting.2:20 The system was TOO effective.2:23 His success rate was impossibly high.2:26 And his rivals in the formal police force started asking questions.2:32 How did Vidocq know where the counterfeiters were hiding their printing press?2:39 How did he find the stolen jewels before the victim even knew the full extent of their loss?2:47 The whispers grew louder.2:49 They claimed he wasn't just solving crime.2:53 He was creating it.2:55 The accusation was simple, and devastating.2:58 That Vidocq’s agents, desperate for their payday, would encourage a burglary, or even stage a minor one themselves, just so they could swoop in and “solve” it, collecting the reward and the glory.3:16 He wasn't just a spymaster.3:18 He was a puppet master, pulling the strings of both law and chaos.3:24 The line had vanished.3:26 In 1827, the pressure became unbearable.3:30 Vidocq, the master investigator, found himself the subject of an investigation.3:37 His own methods, his own network, turned against him.3:42 He was accused of instigating a theft to frame an innocent man.3:47 He was forced to defend the very system that had made Paris safer than it had been in a century.3:56 He was eventually cleared, but the victory was hollow.4:01 The trust was broken.4:02 He saw the writing on the wall and resigned from the force he had built from nothing.4:10 The master of shadows was pushed out into the light, disgraced.4:16 But his idea… his idea was too powerful to die.4:20 The Sûreté continued.4:22 Scotland Yard, years later, would send its own founders to Paris to study his methods.4:29 The F.B.I.4:30 would build its agency on the principle of intelligence gathering.4:36 Every detective who has ever gone undercover, every informant who has ever traded a secret for a second chance, walks in a shadow first cast by Eugène Vidocq.4:50 He proved that to catch a criminal, you had to understand their world.4:57 He just went one step further.4:59 He hired them.