[btilly]

You would be entirely wrong.

A trial like this is not a single giant evidence dump followed by a giant decision. It is a series of hearings. After each hearing something can be ruled on. You can issue a subpoena to collect more information about A, we have settled B as a fact, you are misreading the law so you have to drop that line of inquiry, etc.

Each hearing is impartial. But impartial decisions come at many points. In fact some points will be appealed to a higher court which will make a ruling and then send it to a lower court again with instructions about how to proceed.

This sort of thing can take years.