The city council finds that there are occurrences at commercial establishments open to the public that may, on occasion, disturb the public peace, safety and welfare, thereby requiring the police department to respond and abate the disturbance. When police department responses to disturbances occur more than three times in a six-month period at a particular commercial establishment, the owner(s) or operator(s) of which are unable or unwilling to prevent such disturbances, there is an undue drain on city resources and an improper diminution of police resources available to respond to disturbances elsewhere. It is in the best interest of public safety, welfare and convenience of city as well as in fairness to its citizens that the city require those persons owning and operating commercial establishments to defray the city’s expenses in providing police services for an excessive number of disturbance calls. (Ord. 1966 NCS §1 (part), 1994.)