Every convenience store shall be equipped with a functioning surveillance camera between the hours of 8:00 p.m. and 8:00 a.m. of each day the store is open for business. The surveillance camera must be positioned so as to film all persons entering the establishment and/or all persons approaching within five feet of the cash register. All proposed installations of surveillance cameras must be approved in advance by the Police Department as in conformance with the requirements of this chapter prior to actual installation. The Police Chief is hereby authorized and directed to develop departmental rules and regulations setting forth the minimum specifications for surveillance cameras. The specifications shall be developed with the intent to require surveillance cameras which are functionally capable of recording visual activities and reproducing the same with sufficient quality to aid the Police Department in the apprehension of lawbreakers. A 35 mm camera capable of activation will satisfy the requirements of this section. Surveillance cameras installed prior to the passage of the ordinance codified in this chapter will be deemed to be in compliance with this section.