Special police or law enforcement protection in certain cities of the third class and townships; contracts for protection; joint law enforcement department

Whenever the township board of any township and the governing body of any city of the third class located therein which is located in a county having a population of more than thirty-five thousand (35,000) and not more than forty-five thousand (45,000) and an assessed valuation of more than one hundred ten million dollars ($110,000,000) shall determine that it is necessary for the protection of persons and property within such city and township to provide special police or law enforcement protection, such board may enter into a contract with such city to provide such special police or law enforcement services upon such terms as may be agreed upon by such board and the governing body of the city or such board may join with such city in the establishment and maintenance of a joint law enforcement department. Any such joint department shall be created by agreement between the city and township. Such agreements shall be entered into by ordinance of the city and resolution of the township, shall be signed by the mayor of the city and attested by the city clerk and signed by the township trustee and attested by the township clerk and shall set out the duties and responsibilities of the two parties including the participation of each in the cost of operating such joint department.