[Flack walks up to Willet with Aiden while introducing themselves as cops]
Luther Willett: Wow, cops round here just get prettier every day.
Flack: Watch it.
Luther Willet: Oh, hey, don't get upset. I just got out of prison. You both look good to me. [Willet smirks]

[Giving a toast to Aiden Burn who was killed while working as a private investigator]
Messer: To Aiden.
(as they are processing a vehicle)

[Hawkes and Stella are figuring out Trina's official cause of death]
Stella: So, we've got a murder.
[Hawkes nods]
Stella: Now all we have to do is find the crime scene that goes with it.

[investigating the scene above the canopy]
Aiden: Well, too bad birds can't talk because there's a robin's nest like twelve feet away.
Danny: Bird's-eye view.
Aiden: [laughing] You had to say it, right?
Danny: What are ya gonna do?

[Lindsay and Mac are standing in front of a lube pit at a strip club]:
Mac Taylor: There might be some evidence in there.
Lindsay: Let me know what you find. [Mac gives her a look] I'll go get my boots. [Mac nods]

[Lindsay holds a diamond necklace that was knocked out of the jewelry case during a robbery.]
Danny Messer: Don't even think about it, Montana.
Lindsay Monroe: This necklace is worth more than I make in a year. It's crazy.
Danny: I don't see the big deal. Diamond is just an allotrope of the element carbon.
Lindsay: Spoken like a true romantic.

[Lindsay holds a shirt she ripped off a suspect who was trying to escape]
Danny: Nice collar, Montana.

[Lindsay is digging through a dumpster looking for evidence]
Lindsay: This new-girl stuff has really got to stop.
Mac: It's better than digging through tiger dung.
Lindsay: Funny.

[Lindsay is taking off her shoes before heading into a suspect's home]
Danny Messer: You don't have to do that.
Lindsay Monroe: I was taught that, if you show a little respect, you might get more than you came for.
Danny: You be good cop, I'll be bad cop.
Lindsay: I guess you didn't grow up with hardwood floors.
Danny: No, actually, Bronx Marble.
Lindsay: What's that?
Danny: Linoleum.
[Lindsay puts her shoes back on after the talk with the suspect]
Danny: I thought you were going to play good cop.
Lindsay: There's just something about that woman.

[Lindsay walks into Mac's office with a bottle of hydrogen sulfide on a tray]
Mac Taylor: Hydrogen sulfide?
Lindsay Monroe: I borrowed it from the trace lab. Stuff stinks. That rotten egg smell. It's absolutely awful.
Mac: Yes, I'm aware of that. Why is it in my office?
Lindsay: For science

[Lindsay walks into the crime scene dressed in formal wear. Mac is already there in formal wear, having been to the mayor's party]
Danny Messer: Well, hello, Miss Monroe. You clean up nice. Were you at the mayor's party also?
Lindsay Monroe: I was at the opera.
Danny: I am hanging out with all the wrong people.

[Locksmith made a tiny hole on the wall]
Locksmith: Can you see me?
Danny: Yeah, you're beautiful. Now get me out.

[Looking at a Macy's Day Nutcracker Balloon]
Mac Taylor: They build these balloons in sections and divide them into compartments.
Sheldon Hawkes: Yup, well, that would explain the limp arm.
Mac: The bullet's somewhere inside all that polyurethane. Thought you might wanna do the autopsy. For old times' sake.
Hawkes: (smiling) This job is never boring.

[Mac finds a homemade gun]
Don Flack: And you have no idea how it got like that, right?
Mike Adams: It's a mystery to me, man.
Flack: Join the club.

[Mac gets to the crime scene as Flack finished interrogating a witness/suspect, which are a lot of people dressed as clowns. Mac is amused]
Don Flack: Don't say anything. It's just better of you don't say anything.
Mac Taylor: the victim's inside?
Don Flack: The owner. Gino Cressida, was his son's sixth birthday. Witness' just say a clown walked in a wasted him.
Mac Taylor: And when you showed up, the arresting officers had these guys contained? [nodding to suspects]
Don Flack: Yeah. Now, some of these costumes are way off, but they happen to match the description witnesses gave of the shooter they saw walk across the street and disappear down the alley.
Mac Taylor: So one of these clowns might actually be our killer.