2010 New York Code
CPL - Criminal Procedure
Part 3 - SPECIAL PROCEEDINGS AND MISCELLANEOUS PROCEDURES
Title Q - PROCEDURES FOR SECURING ATTENDANCE AT CRIMINAL ACTIONS AND PROCEEDINGS OF DEFENDANTS NOT SECURABLE BY CONVENTIONAL MEANS--AND RELATED MATTERS
Article 570 - (570.02 - 570.66) SECURING ATTENDANCE OF DEFENDANTS WHO ARE OUTSIDE THE STATE BUT WITHIN THE UNITED STATES--RENDITION TO OTHER JURISDICTIONS OF DEFENDANTS
570.12 - Extradition of persons imprisoned or awaiting trial in another state.

§ 570.12  Extradition of persons imprisoned or awaiting trial in another
               state.
    When  it is desired to have returned to this state a person charged in
  this state with a crime and such person is imprisoned or is  held  under
  criminal  proceedings  then  pending  against  him in another state, the
  governor of this state may agree with the executive  authority  of  such
  other  state for the extradition of such person before the conclusion of
  his term of sentence in such  other  state,  upon  condition  that  such
  person  be  returned to such other state at the expense of this state as
  soon as the prosecution in this state is terminated.