Generally, a probation or parole violation must be filed while the individual is still under supervision. The issue is whether the person should be imprisoned to serve the remainder of the sentence. Once the probation or parole is completed, the sentence is satisfied. There may be exceptions but this is the gneral rule.
However, the underlying conduct may also give rise to other charges.
This person should consult an attorney immediately . Good luck.
THESE COMMENTS ARE NOT LEGAL ADVICE. They are provided for informational purposes only. Actual legal advice can only be provided after consultation by an attorney licensed in your jurisdiction. Answering this question does not create an attorney-client relationship or otherwise require further consultation.