N.J. Stat. § 28:1-5

The commission shall have power to acquire by gift or purchase, or by the exercise of the power of eminent domain, areas, properties, lands, or any estate or interest therein, situate within this state, of historic interest or other unusual features which, in the judgment of the commission, should be acquired, preserved, and maintained for the use, education and pleasure of the people of New Jersey. Such power of acquisition shall be within the limits of any appropriation that may be made by the legislature for such purposes, or of voluntary gifts or contributions placed at the disposal of the commission for such purposes. Before any such property shall be purchased or acquired by condemnation, the commission may call upon the attorney general to make an examination and render a report at the request of the commission.