Sergeant Jeffords: Okay, we're making progress on your phone. We went to the bar where it was taken- Wait, why are you in handcuffs?
Greg: Because I've been arrested.
Rosa: What? By who?
Hitchcock: Hitchcock, baby.

Amy: Hey, I think I found something interesting. I was double-checking last month's surveillance photos, and I noticed this. Hawkins has two different phones: her normal cell, and then this one that only has one app on the home screen Snapchat.
Hitchcock: Oh, she's up to something. Snapchat messages disappear. You can send anything to anybody, and after they see it, it's like I never sent it.
Captain Holt: Nobody ask Hitchcock why he knows that.

Sergeant Jeffords: Hitchcock called himself Scully by accident.
Hitchcock: I did, but it brought me and Scully closer together.

Amy: Hitchcock, why do you have your shirt off?
Hitchcock: Can't spill food on your shirt if you're not wearing one.

Captain Holt: Do not trust any child that chews bubble gum-flavored bubble gum.
Do not trust any adult that chews gum at all.
Never vacation in Banff.

Captain Holt: When people say, "Good morning," they mean, "Hello." When people say, "How are you?" they mean, "Hello." When people say, "What's up?" they mean, "I am a person not worth talking to."

Captain Holt: Five minutes left. What have I missed? Professional handshake.
Amy: We did that. Fingers with a half-centimeter spread, up, down, then separate.
Captain Holt: Good. Acceptable fabrics?
Amy: Cotton or cotton blend. Wool is for outerwear only, and silk is for sex workers or musicians.
Captain Holt: Right. Good desserts?
Amy: There are none. If you are hungry, you should have had more dinner.
Captain Holt: That's it! We're done. You've been mentored.