Lizzie returns from her lunch break, during which she injured the trainer. After a 4-minute conversation, a process server appears with a fully fleshed-out notice of a law suit against her. The trainer wouldn't have had time to see a lawyer, let alone have discussed the case, had the complaint filed, and hired a process server to deliver it.
The idea that illegally obtained information about a 'hacker' who has modified the I.V. pumps would lead to an authorized NYPD sting operation is too absurd to be considered. Any arrest or information obtained from this tactic would be thrown out of court.
Dylan told Julian that a Chihuahua was barking at an IV Machine. The dog was a Pomeranian.