The board of chosen freeholders or county park commission may from time to time raise, appropriate and expend such sums of money as it may deem expedient for operating and improving any such properties for training purposes, including construction of buildings, installation of water mains and hydrants, and the construction on said lands of drill towers and training equipment, in order to instruct members of fire companies in the latest methods, procedures and techniques of fire fighting, to instruct members of police departments and forces in the latest methods, procedures and techniques of police work, and for the purpose of testing apparatus and equipment.
N.J.S. § 40:23-6.46