2010 New York Code
CPL - Criminal Procedure
Part 3 - SPECIAL PROCEEDINGS AND MISCELLANEOUS PROCEDURES
Title T - PROCEDURES FOR SECURING EVIDENCE BY MEANS OF COURT ORDER AND FOR SUPPRESSING EVIDENCE UNLAWFULLY OR IMPROPERLY OBTAINED
Article 700 - (700.05 - 700.70) EAVESDROPPING AND VIDEO SURVEILLANCE WARRANTS
700.40 - Eavesdropping and video surveillance warrants; order of extension.

§ 700.40 Eavesdropping   and   video  surveillance  warrants;  order  of
            extension.
    At any time prior to the  expiration  of  an  eavesdropping  or  video
  surveillance  warrant,  the  applicant may apply to the issuing justice,
  or, if he is unavailable, to another justice, for an order of extension.
  The period of extension shall  be  no  longer  than  the  justice  deems
  necessary  to  achieve  the  purposes for which it was granted and in no
  event longer than  thirty  days.    The  application  for  an  order  of
  extension  must  conform  in  all  respects to the provisions of section
  700.20 and, in addition, must contain  a  statement  setting  forth  the
  results  thus  far  obtained  from  the  interception,  or  a reasonable
  explanation of the failure to obtain such results.   The  provisions  of
  sections  700.15  and 700.25 are applicable in the determination of such
  application.  The order of extension must conform in all respects to the
  provisions of section 700.30.    In  the  execution  of  such  order  of
  extension the provisions of section 700.35 are applicable.