When is the best time to go to the DA, to ask him to help my friend keep the aggravated menacing charge on her husband, because he is dangerous?

Is the DA going to be dropping the charges against him? A little more info is needed here please.

There is never a good time for someone other than the victim to go, since they can't even discuss the case with you.

The best time for the victim to go, would be to call and make an appointment to see them or the Ast DA that is handling the case