Upton: You can't let him do this. Not after what happened to Olinsky.
Voight: I would stop right there. Whatever this is -- anger at me, difference of opinion. emotion getting the best of you for a guy your dating -- I would stop and walk right back out that door.
Upton: It's all those things. And trust me, I don't want to be here. I don't want to be risking my career for a guy I'm dating, but here I am. He has my loyalty, and I don't know how to help him. So, I'm asking you.
Voight: Hailey, I'm doing everything I can to help him. Everything. But at the end of the day, it's going to be his decision, not mine.

Upton: Are you insane? There are a thousand ways this goes wrong. A thousand ways you end up on the wrong end of this. If IRT came to question you that means there's discrepancies in your story. You are risking your career, jail time.
Ruzek: I know.
Upton: Your life. For what? Some half-ass notion of loyalty?
Ruzek: It is not a notion. It's Antonio. It's Voight. It's our unit. It's OUR unit. And I'm going to protect it every time. Every time! That's who I am. Why do you have a problem with that?
Upton: I don't have a problem with that. I have a problem with something happening to you.
Ruzek: No, you have a problem with my damn ethics, Hailey. You always have had a problem with that. And I'm not going to talk about policing with you again.
Upton: Listen. This has nothing to do with police loyalty, it has to do with you. I care about you.
Halstead (interrupting): I can hear you guys in the stairwell. What the hell are you doing?
Upton: Nothing. It's fine, sorry.
Halstead: You cannot be having this conversation here.

Voight: Who the hell do you think you are? You don't protect me. I protect you. That's my job. I'm the one who allowed Antonio to be there. This is on me. From this point on, you don't say another word about this, you get me?
Ruzek: Yes, sir.

Ruzek is dealing with an officer-involved death investigation. And that's the last this team will discuss it. You never have to explain something you didn't say or hear.

Voight

You chose this job over your family. I hope it was worth it.

Laura Dawson

All I know is that if you don't do what this monster says, he'll kill her.

Patrick

Voight: What the hell is going on?
Antonio: What do you mean?
Voight: You don't look so good, bro.

You're one of those brothers that like to straddle the line. You like to pick and choose when to be black and when to be blue. 

Laila

Laila: I'm not wasting calories on that fruity crap. Or a Heineken. 
Atwater: What?
Laila: Straight up, you've been around them white boys too long.

That boy has a target on his back the size of Soldier Field and you want him to wear a wire?

Laila

If her car keeps having problems and you keep giving her rides, you should probably tell your supervisor and fill out the proper HR forms.

Voight

People who aren't sleeping together don't drive to work together. Not to mention, the people we work with are lead detectives.

Upton

Chicago PD Season 6 Quotes

Wait, so is this business or is this some sicko serial killer out here just trying to kill people with dope instead of bullets?

Atwater

You are benched until further notice.

Brennan