N.J. Stat. § 44:4-26
When the board of chosen freeholders shall establish a county welfare-house for the permanent maintenance and relief of the poor in any county and shall have acquired a site therefor, awarded contracts for the necessary building and improvements thereon, and resolved to maintain a county welfare-house as is provided in this chapter, the county welfare board shall constitute the board of managers of such welfare-house. As such board of managers the county welfare board shall have charge of all matters relating to the government, discipline, contracts and fiscal concerns of the welfare-house as appropriated by the chosen freeholders, and shall make such rules and regulations as may be necessary for carrying out the purposes of such welfare-house.
N.J.S. § 44:4-26