Corrected entry: In the scene where Rigsby takes the envelope out of the mail box, he says, 'Postmarked 20th December.' But in full view of the camera, it's postmarked 28th December.
Correction: I just watched this episode and he does say 28th, he's just talking kind of fast.
Corrected entry: When the CBI breaks in the door to Gina's house they kick the door in and break the doorjamb. When the Federal Marshals come in they also kick the door in and break the door again.
Correction: The CBI kicked in the front door. The Marshals came in the back door.