73 Pa.C.S. § 4108: Compensation.

(a) Salaries.--A township that employs police officers shall pay to all the police officers a fixed or stipulated salary.

(b) Fees or other compensation.--A police officer may not charge or accept a fee or other compensation in addition to the salary paid by the township for a service rendered or performed by the police officer, except public rewards and the expenses incurred in the discharge of the police officer's duties.