In order to get to the bottom of his cases, Nate often goes undercover. His background as an insurance investigator provides him with the necessary skill set to do so.
Alec: I'm just very good at what I do. Parker: This is the score! The score! Alec: Age of the geek, baby. Eliot: Somebody kiss this man so I don't have to.
Eliot: He tried to kill us. Parker: More importantly he didn't pay us. Eliot: How is that more important? Parker: I take that personally. Eliot: There's somethin' wrong with you.