2010 New York Code
VAT - Vehicle & Traffic
Title 6 - ACCIDENTS AND ACCIDENT REPORTS
Article 22 - (600 - 605) ACCIDENTS AND ACCIDENT REPORTS
603-B - Accidents; police to indicate serious physical injury and death on simplified traffic information or summons and compliant.

§  603-b.  Accidents;  police  to indicate serious physical injury and
  death on simplified traffic information or  summons  and  compliant.  In
  addition  to  the  requirements  of  section  six  hundred three of this
  article and subdivision twelve of section eleven hundred  ninety-two  of
  this  chapter, in every case where a law enforcement officer is required
  to report pursuant to section six hundred three of this  article  and  a
  person  is  charged with a violation of this chapter arising out of such
  accident, the law enforcement officer alleging such charge shall make  a
  clear notation in the "Description of Violation" section of a simplified
  traffic  information,  or in an area provided on a summons and complaint
  pursuant to subdivision one of section two hundred  twenty-six  of  this
  chapter,  if,  arising  out of the same accident, someone other than the
  person charged was killed or suffered serious physical injury as defined
  in section 10.00 of the penal law; such notation shall be in the form of
  a "D" if someone other than the  person  charged  was  killed  and  such
  notation  shall  be  in the form of a "S.P.I." if someone other than the
  person charged suffered serious physical injury; provided however,  that
  the  failure to make such notation shall in no way affect a charge for a
  violation of this chapter.