There are too many variables to be able to answer this question. It depends upon the strength of the new criminal case and the nature of the previous conviction and new charges as well as what is holding you in jail (the new case, a violation of probation or both). If the new case is a strong case against you, your lawyer should try to negotiate as short a jail sentence as possible (i.e., time served) to run concurrent to any resentence on the violation of probation. If the new case is weak, ask for a bail reduction or demand a speedy trial.
Answered on Jan 09th, 2014 at 4:25 PM