53 Pa. Stat. § 4552
The enforcement of this act, in each city of the first or second class, shall be entrusted to the director of public safety of said city, who is hereby authorized and empowered to appoint a deputy, who shall exercise all the powers of the director of public safety conferred by this act, and one or more inspectors, who shall have no duties to perform other than the enforcement of this act. The director of public safety shall also appoint such clerks and other assistants as may be required to enforce this act. The salaries of such deputy inspector, or inspectors, clerks, and assistants, shall be determined and provided by the councils of said city. Each agency, at least once in two months, shall be visited by an inspector, who shall make a written report thereof to the director of public safety, which shall be preserved in his office. All complaints shall be considered and disposed of by the director of public safety, or his deputy, after an investigation by an inspector under his direction. Complaints against any such licensed person may be made, orally or in writing, to the director of public safety or to his deputy, and notice of such complaint shall forthwith be given to said licensed person by the director of public safety or his deputy, and a hearing thereon shall be given by the director of public safety or his deputy, within three days after notice is given to said licensed person. A record shall be kept of all such complaints and hearings. The director of public safety or his deputy shall refuse to issue, or shall revoke, any license for a violation of any of the provisions of this act; but reasonable opportunity shall be given an applicant or the licensed person to defend himself. When it was shown to the satisfaction of the director of public safety or his deputy that any such licensed person is guilty of any immoral or fraudulent act, in connection with the conduct of his agency, it shall be the duty of the director of public safety or his deputy forthwith to revoke his license.
53 P.S. § 4552