It seems as if I just addressed this, but I looked back and don't see it.
The only way to consistently punctuate questions is to follow this rule: Put the question mark where the question is first asked; where, if the attorney had just stopped and waited, s/he could have gotten an answer.
...What was she wearing? Did you notice?
...What was she wearing? A jacket or a coat?
...What was she wearing? I am talking about on the night of the incident. (or ? depending on intonation)
...Where did it come from? The right? The left?
...Where did it come from? The right or the left?
...Where did it come from? The right, the left, or the middle?
Questions that go on after the first question is asked should be handled in this format.
Happy punctuating!
Margie