Conventions of a crime film (mind map)

In a crime movie the Protagonist (good guy) will usually pay a big price (thriller).
In a lot of crime movies the sound and editing play a big part in the film, as this can be done with quick cuts and camera angle changes, music that gives tension and builds up in the film when appropriate.
Again Lighting, especially the use of shadow to lead up to action adds a good setting to a crime film. Mirrors are also conventions of crime/thriller movies, such as looking up and seeing something behind you. It usually sees the good guy take on the bad guy. Usually have the police are the good side.
Guns and other high tech weaponry are commonly used. Also sources such a knifes, and general harmful weapons
They allow audiences to indulge two logically incompatible desires: the desire to enter a criminal world most of them would take pains to avoid in real life, and the desire to walk away from that world with none of its traumatic or fatal consequences. Whether they focus on criminals, convicts, avengers, detectives, police officers, attorneys, or victims, crime films depend on a nearly universal fear of crime and an equally strong attraction to the criminal world. They play on a powerful desire for a modern-day version of the catharsis that Aristotle contended should evoke and purge pity and terror. Crime films from every nation help establish that nation's identity even as criminals seem to be trying their hardest to undermine it.