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1987 Philippine Constitution: High-Yield Provisions for Civil Service Examinees

Core constitutional concepts: Article III Bill of Rights, the 3 Independent Constitutional Commissions, and public accountability.

ReviewTayo Editorial Team(Civil Service Exam Curriculum Researchers)
Last updated: September 2026
Table of Contents
  • 1.Article III: The Bill of Rights Fundamentals
  • 2.Article IX: The Three Independent Constitutional Commissions

Article III: The Bill of Rights Fundamentals

The Bill of Rights is the cornerstone of fundamental civil liberties in the Philippines. High-frequency CSE test areas include: Section 1 (Due Process and Equal Protection of the Laws: procedural due process requires notice and hearing; substantive due process requires fair and reasonable laws); Section 2 (Unreasonable Searches and Seizures: requires a valid search warrant issued upon probable cause personally determined by a judge); Section 3 (Privacy of Communication and Correspondence: inviolable except upon lawful court order or public safety); and Section 12 (Miranda Rights: right to remain silent and to have competent and independent counsel during custodial investigation).

Key Takeaways for Examinees
  • Search warrants and warrants of arrest can ONLY be issued by a judge upon probable cause.
  • Evidence obtained in violation of the Bill of Rights is inadmissible for any purpose (Fruit of the Poisonous Tree doctrine).
  • The right against self-incrimination applies to testimonial evidence.
Sample Exam Simulation Question

Which government authority has the sole constitutional power to issue warrants of arrest and search warrants upon determination of probable cause?

A. Police Chief or Investigator
B. City or Provincial Prosecutor
C. Judge of a competent court
D. Secretary of Justice
Concept Rationale: Article III, Section 2 of the 1987 Philippine Constitution provides that warrants of arrest and search warrants may be issued only upon probable cause personally determined by a judge after examination under oath or affirmation of the complainant and witnesses.

Article IX: The Three Independent Constitutional Commissions

The 1987 Constitution establishes three independent constitutional bodies possessing fiscal autonomy and specialized mandates: (1) Civil Service Commission (CSC) — the central personnel agency of the Philippine government; (2) Commission on Elections (COMELEC) — enforces and administers all election laws; and (3) Commission on Audit (COA) — examines, audits, and settles all accounts pertaining to government revenue and expenditures.

Key Takeaways for Examinees
  • The Civil Service Commission is the central personnel agency mandated to ensure merit and fitness in public appointments.
  • Members of Constitutional Commissions serve fixed 7-year terms without reappointment.
  • All three commissions enjoy fiscal autonomy, meaning their approved appropriations cannot be reduced by the legislature.

Official Syllabus References & Legal Authorities

  • 1987 Constitution of the Republic of the Philippines (Official Text)(Official Gazette of the Republic of the Philippines)

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