13. If it appears to the Government that by reason of the trivial nature of the case or by reason of the application for the surrender of a fugitive offender not being made in good faith or in the interest of justice or for any other reason, including unreasonable delay on the part of the state asking for the surrender to receive delivery of the fugitive offender, it would be unjust or inexpedient to surrender the fugitive offender, it would be unjust or inexpedient to surrender the fugitive offender, it may, by order, at any time stay the proceedings under this Act against him and direct any summons or warrant issued under this Act to be cancelled and the fugitive offender, if he is in custody or under detention, to be discharged.