I am not completely sure I understand your question. The hearing officer will determine whether or not to revoke her parole, continue her parole, or send her to ISF and then continue her parole. If her parole is revoked whether or not she gets credit for her street time depends on how long she had been on parole when the warrant was issued, whether the drug offense was increased as a result of being in a drug free zone, and could depend on her criminal history. On most drug offenses if the person has completed over half of their parole at the time the blue warrant was issued and then their parole is revoked they will get their street time and return to TDCJ to complete their sentence (or get paroled again). If she had not completed half of her parole she will not receive credit for the time she was out on parole and if she goes back to TDCJ and it sounds like she would have two years to serve. I hope that helps, I would recommend hiring a local attorney with experience handling parole hearings to represent her.