16 Pa. Stat. § 4515.2
In counties of the second class for a period of one year from the effective date of this section, county commissioners may fill fifteen vacancies in the police force as prescribed in this section. The county commissioners may nominate persons to the commission for a noncompetitive examination. It shall then become the duty of the commission to submit such persons to an examination to determine their merit and fitness to discharge the duties of police officers. Such persons who qualify shall be so certified by the commission and may then be appointed by the county commissioners. In order to qualify for such appointment, such persons must be at least eighteen years of age or older. Such persons need not be residents of the county. Persons appointed under this section shall thereafter be subject to the provisions of this article relating to members of the police force.
16 P.S. § 4515.2