2006 New York Code - Additional Parties; Supplemental Process

 
  § 312. Additional parties; supplemental process
    The court may issue a supplemental process at any time and require any
  party  to  procure  it  and cause it to be served in conformity with the
  provisions of 307 and 308 on any person in any proceeding, so  that  any
  person  necessary or proper to a final determination therein may be made
  a party thereto.