The Portable Psychology Diagnostic and Suppression System or the 45MW.TRG Dominator is the iconic handgun carried by enlisted Inspection and Enforcement officers. The gun is able to determine the identity of its holder, and requires authentication and wireless connection to the Sybil system in order to operate. Each individual gun can also only be heard by its holder.

When the Dominator is aimed at a target, it continuously reads and sends their psychological data (psycho-pass) to the Sybil system for calculation. When this value exceeds a certain level (indicating that the target is mentally unstable, and more likely to commit a violent crime), the gun will then be able to fire. If the level does not exceed fixed levels, the muzzle will not open and a safety device will be activated to prevent the user from pulling the gun’s trigger. The gun is unable to work when it is not linked wireless to the Sybil system in most circumstances.

Before the gun fires, the muzzle opens up to reveal a complicated mechanism inside, part of which is used to read the suspects criminality. When the gun does fire, it lets out a bullet the color of sky blue. It is voiced by Noriko Hidaka. The gun has three modes: The Paralyser, Lethal Eliminator and Lethal Decomposer.