Section 400.22. Evidence of imprisonment

The  certificate of the commissioner of correction or of the warden or
  other chief officer of any prison, or of  the  superintendent  or  other
  chief  officer  of  any  penitentiary  under  the  seal  of  his  office
  containing name of person, a statement of the court in which  conviction
  was  had,  the date and term of sentence, length of time imprisoned, and
  date of discharge from prison or  penitentiary,  shall  be  prima  facie
  evidence  of  the  imprisonment  and  discharge  of any person under the
  conviction stated and set forth in such certificate for the purposes  of
  any proceeding under section 400.20.