As a judge what will you do ?
will you address the case as a fresh murder or will you consider it as a crime she already served the term?
I think the reasonable thing to do is to allow her go after the arrest because she has already served the jail term for the murder and won't have to be punished for it again. She won't be sentenced for a particular crime twice, so I think that settles it but if she is made to go to jail again on it, that is injustice to her.