Quantum Clues are the major breakthroughs in a case. They are not tied to an individual location, but rather can turn up at any time. Quantum Clues should be predetermined, and should lead the players to the next major crime scene, location, or individual. They will never directly point out who the culprit is, but they give the detectives a major piece of information that they otherwise would not have had access to.

Players can spend 3 IP to unlock a Quantum Clue.