Visible crew/equipment: Near the end of the episode when Harry says "there will be a 10 minute recess" a boom mic is visible.
Continuity mistake: In the first courtroom scene, Hacksaw is standing up twice.
Continuity mistake: In the first courtroom scene Sheila's briefcase opens and closes a couple of times between shots.
Answer: It's possible when Harry called the military, he implied that the book contained sensitive information, seeing as how many government and military officials were part of the client list.
I thought it was because he developed feelings for the madam and couldn't bring himself to turn her in.