noun. a person who installs, or monitors wiretaps

noun. someone who wiretaps a telephone or telegraph wire

"And then there was self-proclaimed wiretapper and transcriber, Tarita Virtue, an ex-Pellicano employee, who was not charged in this case even after lying to the F.B.I. Next, Mr. Hummel brought up Lily LeMasters, an ex-Pellicano love interest and employee, who also lied to the F.B.I., knew about wiretapping and yep, was not charged in this case."

eavesdropper