If she was served with a subpoena, which is a court order to appear in court on a certain date and at a certain time, she was required to appear in court on the date stated on the subpoena. Failure to do so can result in the judge issuing a bench warrant or body attachment for her arrest. The police will be looking for her and when found will arrest her and eventually bring her to court to explain to the judge why she disobeyed the subpoena. The court can find her in contempt of court and sentence her to jail.
Answered on Mar 06th, 2014 at 4:45 PM