280.17B  Students suspended or expelled for possession of dangerous weapons.
  The board of directors of a public school and the authorities in control of a nonpublic school shall prescribe procedures for continued school involvement with a student who is suspended or expelled for possession of a dangerous weapon, as defined in section 702.7, on school premises in violation of state law and for the reintegration of the student into the school following the suspension or expulsion.
95 Acts, ch 191, §22