Also -
http://sc.judiciary.gov.ph/pdf/web/viewer.html?file=/jurisprudence/2014/april2014/204819.pdf
"x x x.
In this connection, it bears adding that while the scope of judicial power of review may be limited, the Constitution makes no distinction as to the kind of legislation that may be subject to judicial scrutiny, be it in the form of social legislation or otherwise. The reason is simple and goes back to the earlier point. The Court may pass upon the constitutionality of acts of the legislative and the executive branches, since its duty is not to review their collective wisdom but, rather, to make sure that they have acted in consonance with their respective authorities and rights as mandated of them by the Constitution. If after said review, the Court finds no constitutional violations of any sort, then, it has no more authority of proscribing the actions under review. 90 This is in line with Article VIII, Section 1 of the Constitution which expressly provides:
Section 1. The judicial power shall be vested in one Supreme Court and in such lower courts as may be established by law.
Judicial power includes the duty of the courts of justice to settle actual controversies involving rights which are legally demandable and enforceable, and to determine whether or not there has been a grave abuse of discretion amounting to lack or excess of jurisdiction on the part of any branch or instrumentality of the Government. [Emphases supplied]
As far back as Tanada v. Angara, 91 the Court has unequivocally declared that certiorari, prohibition and mandamus are appropriate remedies to raise constitutional issues and to review and/or prohibit/nullify, when proper, acts of legislative and executive officials, as there is no other plain, speedy or adequate remedy in the ordinary course of law. This ruling was later on applied in Macalintal v. COMELEC, 92 Aldaba v. COMELEC, 93 Magallona v. Ermita,94 and countless others. In Tanada, the Court wrote:
In seeking to nullify an act of the Philippine Senate on the ground that it contravenes the Constitution, the petition no doubt raises a justiciable controversy. Where an action of the legislative branch is seriously alleged to have infringed the Constitution, it becomes not only the right but in fact the duty of the judiciary to settle the dispute. "The question thus posed is judicial rather than political. The duty (to adjudicate) remains to assure that the supremacy of the Constitution is upheld." Once a "controversy as to the application or interpretation of constitutional provision is raised before this Court (as in the instant case), it becomes a legal issue which the Court is bound by constitutional mandate to decide. [Emphasis supplied]
x x x."
