Both an appearance notice and a summons are official notices telling a person that they have to appear in court at a specific time and place to answer to a criminal charge. Usually, a police officer gives you an appearance notice. You may receive a summons in the mail. If you are personally served with either document, but then you (or your representative) do not come to court when the document requires, a warrant may be issued for your arrest. - http://tinyurl.com/nqfoh2