N.J. Stat. Ann. § 30:4-141

The board of managers shall adopt a system of identification and record and exchange of indentifications, which the principal keeper shall cause to be applied to every prisoner. The principal keeper shall obtain and record information concerning the past life and the nature and gravity of the crime for which each prisoner was sentenced, as well as of his conduct while in prison. Such information shall be laid before the board of managers and shall by them be considered when determining the parole of any prisoner.