Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011 720 ( aa ) To make suitable provisions to protect the public from conflagrations and the effects of famine, floods, storms, and other public calamities and to provide relief for persons suffering from the same. ( bb ) To provide for the establishment of, and to maintain and regulate a police force, prescribe the powers and duties of its members, and make all necessary police ordinances, with a view to the confinement and reformation of vagrants, disorderly persons,  mendicants, and prostitutes, and persons convicted of violating any city ordinance; and to provide for the arrest, trial, fining and putting to work on the streets and elsewhere of such persons. ( cc ) To extend, and provide for the enforcement of its ordinances over all waters within the city, over the Bay of Manila three miles beyond the city limits, and over any boat or other floating structures thereon; and for the purpose of protecting and insu ring the purity of the water supply of the city to extend, and provide for the enforcement of ordinances to that end over all territory within the drainage area of such water supply, or within one hundred meters of any reservoir, conduit, canal, aqueduct,  or pumping station used in connection with the city water service. ( dd ) To provide for the enforcement of the regulations of the Philippine Health Service, and by ordinance to prescribe fines and penalties for violations of such regulations. ( ee ) To fix rates and provide for the collection of wharfage from all water craft landing at or using public wharves, docks, levees, or landing places. (ff) To regulate the use of lights in stables, shops, and other buildings and places, and to regulate and restrain the building of bonfires and the use of firecrackers, fireworks, torpedoes, candles, skyrockets, and other pyrotechnic displays. ( gg ) To provide for the prevention and suppression of riots, affrays, disturbances, and disorderly assemblies; for the punishment and prevention of intoxication, fighting, quarreling, and all disorderly conduct; and for keeping the peace. ( hh ) To regulate, control, and prevent discrimination in the sale and supply of gas, electricity, and telephone and street-railway service, and fix and regulate rates and charges therefor where the same have