a show set in a dystopian near-future where all citizens' mental conditions are constantly scanned, allegedly in order to preemptively stop crime. when someone is detected as becoming unhinged, inspectors and enforcers are dispatched to apprehend (or otherwise deal with) the perpetrator.
inspectors are people identified to have clear consciences, therefore making the best law officers. enforcers exist to undertake the dirty work that might happen during an arrest, to avoid corrupting the inspectors' own judgment. ironically, many enforcers happen to be ex-inspectors.
the main tool of law enforcement in Psycho-Pass is a handgun called a dominator. dominators can only fire when their target is analyzed as likely to commit a crime, so the handgun is generally inactive. its three active modes (which activate based on the situation) are stun gun, lethal and anti-materiel.
as it turns out early on into the show, the system that detects criminal intent has glaring flaws. not much else can be said without giving the plot away.
tldr: anime about a society controlled by scanners that attempt to preemptively detect criminal intent. only the first season is worth watching.