Section 210.35. Motion to dismiss indictment; defective grand jury proceeding

A  grand  jury proceeding is defective within the meaning of paragraph
  (c) of subdivision one of section 210.20 when:
    1.  The grand jury was illegally constituted; or
    2.   The proceeding is  conducted  before  fewer  than  sixteen  grand
  jurors; or
    3.    Fewer  than  twelve  grand  jurors  concur in the finding of the
  indictment; or
    4.  The defendant is not accorded an opportunity to appear and testify
  before the grand jury in  accordance  with  the  provisions  of  section
  190.50; or
    5.    The proceeding otherwise fails to conform to the requirements of
  article one hundred ninety to such degree that the integrity thereof  is
  impaired and prejudice to the defendant may result.