N.J. Stat. § 30:4-85.1
Any inmate of any county jail, workhouse or penitentiary may be transferred to any appropriate existing correctional institution maintained by the State or which may hereafter be established or designated by the State board for the purposes herein provided. Such transfer shall be made on forms to be prescribed by the department, upon the request of the chief executive officer, warden or keeper of any county correctional institution or upon the initiative of the commissioner in accordance with the formally adopted rules and regulations of the State board, after recommendation by a special classification review board appointed by the State board from among members of the department's central staff that such transfer should be made. No such transfer shall be made to the State Prison nor shall any such transfer operate as authority for the detention of any person for a term in excess of that fixed by the original sentence or order of commitment.
By the same method, any inmate of a correctional institution maintained by the State, on the initiative of the commissioner, may be transferred, with the consent of the board of chosen freeholders, to an appropriate correctional institution in any one of the several counties.
In the event it is determined by the Commissioner of Corrections that a county jail, workhouse or penitentiary is not suitable or adequate to properly secure any inmate under sentence or charged with any criminal offense, he may transfer the inmate to any existing correctional institution maintained by the State, including the State Prison. The Commissioner of Corrections shall be empowered to determine a specific State correctional institution, including the State Prison, for the proper and secure incarceration of the inmate.
Any person so transferred may be retransferred to his place of original confinement or may be transferred to any existing jail, workhouse or penitentiary located in any one of the several counties. The cost of such transfer and the expense of maintaining the inmate in any State institution or an institution located in a county other than the county from which the inmate was originally committed and confined shall be borne by the State.
N.J.S. § 30:4-85.1