I talked to a relative who is a lawyer and was told that court cases are not dramatic as seen on TV. Both the prosecutor and defense side have access to all documents and have ample time to prepare their arguments. There are no surprises in court (if there is either side can ask for more time to prepare based on new info).

So knowing strategies doesn't really help, because you kind of already know the strategy and have prepared your response.

Now - if you are guilty, and you tell your lawyer where you buried the bodies and the police happen to let a cadavar dog lose in that general location ...

However, I agree with the first poster - there should be an official secure channel for communicating with counsel after you are convicted.