Crime Coefficient

Lore & Background

In the Psycho-Pass world, the Crime Coefficient replaced the old penal code. There are no juries, no appeals, no ambiguity. The Sibyl System reads the neurochemical and behavioral signals of every registered individual and outputs a figure that updates in real time. A citizen whose coefficient hovers near zero is trusted to hold a position of judgment—typically as an Inspector. A citizen whose coefficient has climbed into a middle band is stripped of autonomy and pressed into service as an Enforcer, a disposable enforcer whose elevated criminality is harnessed for the state's benefit. A citizen whose coefficient crosses the upper threshold is simply a Criminal, and the state's response is immediate and final: the Dominator's crosshair locks, and the sentence is carried out on the spot.

The system's designers present this as the elimination of bias. No judge, no prosecutor, no defense attorney—just a number and a color. In the early episodes, characters like Akane Tsunemori accept this framework as the natural order, a post-punishment society where the act of killing a Criminal is no different from administering a medical procedure. The narrative's power lies in slowly corroding that acceptance. As Tsunemori witnesses the system's blind spots, its capacity for manipulation, and the way the coefficient can be gamed or misread, the number stops feeling like truth and starts feeling like a leash.

The Crime Coefficient also creates a peculiar social anxiety. Citizens are aware that their coefficient is being watched, that a single outburst or a night of poor sleep could nudge the decimal upward. The world is one where emotional regulation is not merely a personal virtue but a civic obligation. The pressure to remain calm, rational, and 'low-numeral' permeates every interaction, every workplace, every family dinner. It is a society that has traded freedom of feeling for the promise of safety, and the story asks whether that trade was ever truly fair.

In Their Own Story

The rain had not stopped for three days. Akane stood under the awning of a convenience store in the Shinjuku district, watching the neon reflections smear across wet asphalt. Her Dominator sat in her coat pocket, warm against her thigh, its screen dark. Across the street, a man in a grey suit walked with his head down, shoulders hunched, as if the weight of his own number pressed on his spine. She could not see his coefficient—only she and her Enforcer could read it. But she could see the way he flinched at every passing siren, the way he kept his hands visible, palms open, as if offering proof he was still a citizen and not yet a target.

Behind her, Kogami's boots crunched on the gravel. He said nothing. He never said much. His own coefficient was a number she had seen once, and the memory still sat in her stomach like a swallowed stone. She looked at him and thought: the system calls you a tool. It calls me a judge. But who is judging the judge?

The rain kept falling. The city hummed its clean, silent hum. And somewhere in a server farm she would never be allowed to visit, a decimal ticked upward by one hundredth of a point, and a stranger's life quietly narrowed by one more degree of freedom.

Reader's Guide

You experience the Crime Coefficient the way a citizen of this world does: as an ambient, inescapable presence. Every public space is monitored. The sleek, sterile architecture of the city—glass towers, clean transit pods, soft blue lighting—conveys a society that has optimized for order. There are no visible prisons, no courthouses, no police stations in the traditional sense. Justice is delivered on the street, in real time, by a pair of officers with a handheld device.

The Dominator is the object you see most. It looks like a compact tablet or gun-hybrid, and when an Inspector or Enforcer activates it, a target's Crime Coefficient and Hue appear as a floating readout. The number is a decimal; the Hue is a color that shifts from cool blue (stable) through yellow (elevated) to deep red (criminal). This two-part display is the visual shorthand the show uses to tell you, in a single glance, where a person stands in the social hierarchy.

What sets this world apart from present-day Japan is the total absence of legal process. There is no trial, no appeal, no right to counsel. A red Hue is a death sentence executed within seconds. The social hierarchy is not based on wealth or birth but on that single number, and it is fluid—your coefficient can rise or fall, meaning your status is never permanent. The result is a society that is simultaneously hyper-safe and hyper-anxious, where the greatest social sin is not theft or violence but the loss of emotional control that might nudge your decimal upward.

Did You Know?

• The Crime Coefficient and the Hue are two complementary readouts: the coefficient is a numerical probability, while the Hue is a color-coded indicator of the same underlying mental state. Both are displayed together on t
• Enforcers are not prisoners in a traditional sense; they are citizens whose Crime Coefficient has risen above the normal range but below the criminal threshold, and the state conscripts them as armed operatives rather th
• The Sibyl System is presented as a collective AI composed of many individual consciousnesses, not a single program, which raises the question of whether its judgments are truly objective or merely the averaged opinion of
• In the narrative, characters who resist or question the system's readings—such as the protagonist Akane Tsunemori—eventually find their own Crime Coefficient rising, suggesting the system may interpret dissent itself as