Captain Holt: It's not that. It's that I refuse to put Kevin in harm's way.
Jake: Understood, but I think maybe I have a way to put Kevin in danger without putting Kevin in danger.
[later:]
Jake: [impersonating] Well, hello there Raymond. It's me, Kevin!
Kevin: [flatly] And I am Detective Jacob Peralta.
Jake: We didn't have anything else to wear so we just switched.
Kevin: He understands.