under book 1 title 1 chapter 2, it states:
SECTION 16. General Welfare. − Every local government unit shall exercise the powers expressly granted,those necessarily implied there from, as well as powers necessary, appropriate, or incidental for its efficient and effective governance, and those which are essential to the promotion of the general welfare. Within their respective territorial jurisdictions, local government units shall ensure and support, among other things, the preservation and enrichment of culture, promote health and safety, enhance the right of the people to a balanced ecology, encourage and support the development of appropriate and self−reliant scientific and technological capabilities, improve public morals, enhance economic prosperity and social justice, promote
full employment among their residents, maintain peace and order, and preserve the comfort and convenience of their inhabitants.
further, it states:
SECTION 21. Closure and Opening of Roads.
(a) A local government unit may, pursuant to an ordinance, permanently or temporarily close or open any local road, alley, park, or square falling within its jurisdiction: Provided, however, That in case of permanent closure, such ordinance must be approved by at least two−thirds (2/3) of all the members of the Sanggunian, and when necessary, an adequate substitute for the public facility that is subject to closure is provided.
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the provisions above, taken hand in hand with the power of eminent domain or expropriation cannot be taken in isolation of each other but rather as a whole
thus, if the exercise of police power results in expropriation of private property for public use, then just compensation is due
the general welfare clause triggers the "right" of the local government unit to effect the necessary police action and if the "public use" is established (i.e. the grounds for expropriation is proper), then compensation is due as a result of this taking.
thus, if we limit the cause of action or issue of the BF residents to merely the exercise of police power, it may stand on precarious grounds compared to a situation where you question the exercise of police power as well as the capability of the local government to pay just compensation because without just compensation, there can be no taking or expropriation.
