As a leading Assistant State's Attorney in the narcotics division, Pearlman has been a guiding legal presence through all of the wiretap detail's investigations. A stickler for process, Pearlman's grasp of the nuance of surveillance law and the legalities of complex casework proves invaluable to the investigations of both the Barksdales and Sobotka. However, like everyone else with her eye on office politics and the next promotion, she is often worried about the political implications of the casework.
A tough prosecutor, she once had a soft spot for Jimmy McNulty, leading to an on-again-off-again affair that was eventually discovered by McNulty's wife - and ultimately led to the dissolution of the marriage. Although McNulty was honest enough to give Pearlman no hint of a future together, he still felt comfortable enough to show up on her doorstep every now and then. This ended when her relationship with Colonel Daniels began, and now her career - under a new State's Attorney - is flourishing along with Daniels'.