Grissom': Hey, stop! Evidence! (Det. O'Riley stops and changes his course, staying off of the main floor and on the sides of the room)
Det. O'Riley: We got to hug the wall? This is the only room with no blood in it. There's nothing to disturb.
Grissom': You guys will never get it, will you?
(Seeing a couple officer's throwing up)

Grissom': Mr. Renteria, your apartment walls are covered in human blood. Are you aware of that?
Clifford Renteria: Yeah.
Grissom: Do you have an explanation?
Clifford Renteria: It's my blood.
Grissom: Your blood?
Brass: You got a stigmata?
Clifford Renteria: No. I get nosebleeds.

Grissom': What's wrong with your two guys?
Det. O'Reilly: They've been inside.
(Grissom looks at the house and sighs)

Grissom (looking at the eyeball): Well, someone's missing a contact lens.
Catherine: That's not all they're missing.
Grissom: You know, ravens, like eagles, have been known to travel 30 miles from roost to feeding ground.
Catherine: 30 miles in every direction. Pi-r-squared. That means that we're looking at a ... 2,800 mile search area.
Grissom: "Once upon a midnight dreary while I pondered weak and weary over many a quaint and curious volume of forgotten lore."
Catherine: We're up a tree and you're quoting Poe. Give me something.
Grissom (holding the eyeball): "Quoth the raven: Only this and nothing more."

Grissom (to Craig after he doesn't say anything about letting Adam choke): Out of words?

Grissom (to Doc Robbins): Alicia's cause of death?
Doc Robbins: Cardiopulmonary arrest.
Grissom: Time of death?
Doc Robbins: That's a little trickier. No solids in the stomach contents, just a milky liquid. Liver mortis was fixed and deep purple with a vitreous humor potassium level of 20 millimoles per liter with faint putrefaction. So, I'd say she's been dead about... 44 hours between midnight and 8:00 A.M., the day of her kidnapping.
Grissom: Which means April Perez was lying about the abduction.
Doc Robbins: Yep. Story's got more holes than her sister's bones.

Grissom: "The best intentions are fraught with disappointment."

Grissom: (angry) Are you looking for work?
Nick: I just...
Grissom: The sign says, "Do Not Enter," Nick. You can't read anymore? You're blind? What?
Nick: Grissom, this is important.
Grissom: (furious) This is important. Sometimes in interrogations, Nick, you get one chance, one answer. And while I'm out here screwing around with you he's in there thinking up an answer that he didn't have before you walked in.
Nick: We matched the DNA taken from Lacey Duvall to a cold case in Texas ten years ago.
Grissom: And?
Nick: The suspect's name was Chad Matthews.
Grissom: C.M. The cuff link. Okay, I'm starting to forgive you.
Nick: Sara ran Patrick Haynes' social. The real Haynes is deceased. So Patrick Haynes is Chad Matthews and Chad Matthews is on the run.
Grissom: And he just ran into us.

Grissom: (finding a tooth in the fireplace)I think the tooth fairy might have just left us a piece of Portia Richmond.

Grissom: (looking at the victim) The Van Gogh effect... in stereo. Both ears gone.
Catherine': A perfectly symmetrical amputation. Means he was looking directly at the bomb when it went off.
Grissom: So either it drew his attention or it was contained in something that seemed benign.

Grissom: (to Greg while looking at a gun) What's this blue stuff on the slide and the grip? (Greg doesn't answer) It's okay to say you don't know, Greg. That's why we have a trace lab.

Grissom: [about why the killer brought the Polaroid with him] Bring me the head of John the Baptist. Salome- wanted proof that he was dead. They didn't have Polaroids back then.
Brass: So you're saying our first victim was a hired killer. Hired by whom?
Greg: Whoever shot him?

Grissom: [Laughing] Jacks or better. You're under arrest.
Suspect: Oh, yeah? What for?
Grissom: First-degree murder.
Suspect: Oh. On what grounds?
Grissom: [Looking at suspect's boots] Roof dust.

Grissom: [Looking at beetle found at crime scene.] Can I keep him?

Grissom: [Looking at detached head] It means 6 - 8 hours ago someone lost their head and then... someone lost their head.