Section 516. Commissioner of jurors to summon jurors

The commissioner of
  jurors shall summon each juror drawn for jury service  by  serving  upon
  him  a  summons  and  specifying the place where and the time when he is
  required to attend.    The  summons  may  be  served  by  mail,  or  the
  commissioner  may  direct the sheriff to serve the summons personally or
  by leaving it at the juror's residence  or  place  of  business  with  a
  person of suitable age and discretion.