In Criminal Case, every time a murder occurs, a murder case must be filed in the database. A case, or an episode, always begins with a short cut-scene. Usually in this cut-scene, the player is informed by the about a new murder, then the player and their head off to investigate the crime scene so as to find clues, which eventually lead the team to search other crime scenes, find more clues, interview , and carefully analyze evidence to finally incriminate the behind the murder. In some instances, the player and their partner take an initiative to commence investigation after witnessing a murder, an action being a suspected murder, just to name a few.