try to consult a criminal defense lawyer to find if you were entitled to be charged with the offense while you were previously in custody, and if you can get a good plea deal to the old charges on the basis of some sort of claim that you should have been able to take advantage of concurrent sentencing during your prior jail time, and (3) if the evidence in relation to the charges is still available, given the passage of time, and if not what that means in relation to the viability of the prosecution.