N.J. Stat. Ann. § 2A:160-2

Whenever any person charged in this State with any crime shall flee from justice and be found in another state, territory or district, and the attorney general or the prosecutor for any county where such person is so charged shall recommend to the governor or person administering the government of this State that he demand the fugitive, so that he may be brought into this State for trial, and the fugitive shall, on the demand of the executive authority of this State, be delivered up for removal to this State, the expense of such removal, being first ascertained to the satisfaction of the prosecutor of the county where such person is so charged, and being approved by a judge of the Superior Court, shall be paid by the county treasurer out of the funds of such county.