Batman is called the "World's Greatest Detective" for a reason. His abilities to solve crimes is near unprecedented. He is a master of taking the clues at hand and solving whatever problem is in front of him.
In the Arkham Games, one of the key tools he used to solve mysteries in game was his Detective Mode. This mdoe focused in on the subtle things hidden in the world. From footprints, to fingerprints, to DNA, all of it could be seen by Batman.
And in some cases, using this mode was imperative to completing certain missions in the game. It truly made you feel like a detective.