Psycho-Pass: Inspector Shinya Kogami Volume 4

The perfect society and its price...the manga prequel to the acclaimed anime series! In the 22nd century, the Psycho-Pass measures emotional health, making crime not only rare, but strange and dangerous - and the only 'safe' job for a person on the borderline is as a cop... kept on a virtual leash as they hunt down the criminals they may soon become themselves!