Jo: Cotton, indigo, foil, boric acid. Trace that Sid collected from the wound of our vic.
Hawkes: Okay. Uh, cotton and indigo... sounds like denim. Foil... but boric acid?
Jo: Okay, usually used as an antiseptic, insecticide, flame-retardant, lubricant.
Hawkes: Any number of things.
Jo: (Joking) Uh! I expected so much more from you.