The main thing is to care. Care very hard, even if it is only a game you are playing.
Certainly going back to Sherlock Holmes we have a tradition of forensic science featured in detective stories.
I'll fill those canyons in your soul, like a river lead you home. And I'll walk a step behind, in the shadows so you shine. Just ask, it will be done and I will prove my love, until you're sure that I'm the one.