Tragco transcribed the exchange on the other DC thread:
If any of our attorneys are reading, correct me if I'm wrong, but my understanding of
legal privilege is that it applies to communication between a client and an attorney (or someone working in the attorney's employ).
It doesn't apply to the clients of a PI, or an accountant, or a doctor, or any other vendor-client relationship.
The only people with whom DC would have a privilege issue is Casey Anthony (he has a letter agreement with her dating from the time he worked for Baez) and her defense team (who employed him in August and September).