 In order to be selected as a juror, one must be aged between 28 and 65, be able to read and write in the language of the trial, not be a clergyperson, the holder of certain public offices or in active military service, not be disqualified from the exercise of civil and political rights by means of a judgement, and not have received a criminal sentence above a certain threshold.Up to twelve alternate jurors can be selected as well.Serving on an assizes jury is considered to be a civic duty and legally obligated; a potential juror may thus not be dismissed from their jury duty without a valid reason.