Political Law
Due Process
HIGH-YIELD DOCTRINE
Rule To Keep In Mind
Before the State may deprive a person of life, liberty, or property, it must act fairly, both in the procedure used and in the substance of the law applied.
Standards & Tests
Procedural Due Process
Requires notice and a meaningful opportunity to be heard
Must be before an impartial decision-maker
The required procedure is flexible, depending on context
Substantive Due Process
Government acts must not be arbitrary, oppressive, or unreasonable
There must be a real and substantial relation to a legitimate governmental purpose
Bar technique: Identify which kind of due process is involved before applying facts.
When This Applies
Due process applies to:
Legislative enactments
Executive and administrative actions
Judicial and quasi-judicial proceedings
It is triggered whenever government power affects protected interests.
Limits & Exceptions
Summary action may be valid when:
public interest demands urgency, and
adequate post-deprivation remedies are availableNot all situations require a full trial-type hearing
Administrative due process is context-specific, not rigid
Bar Focus
Examiners usually test due process by:
forcing you to choose between procedural vs substantive
presenting government action without prior hearing
attacking the reasonableness of a law justified as police power
embedding due process issues in administrative cases
Scoring move: Frame the answer around fairness of method and fairness of result.
Bar Traps
❌ Treating due process as purely procedural
❌ Assuming any hearing automatically satisfies due process
❌ Forgetting that a perfect procedure cannot save an arbitrary law
Warning: Clean process does not cure an abusive statute.
Cases - Foundational
Substantive Due Process
Ichong v. Hernandez, G.R. No. L-7995 (1957)
Recognized that even when acting under police power, the State must comply with substantive due process—laws must not be arbitrary, oppressive, or unreasonable.
Bar use:
Use when the validity of the law itself is attacked.
Procedural Due Process (General / Non-Administrative)
Banco Español-Filipino v. Palanca, 37 Phil. 921 (1918)
Established the fundamental rule that notice and an opportunity to be heard are the essence of procedural due process. A judgment rendered without notice is void, regardless of the merits.
Bar use:
Cite when the issue involves lack of notice, absence of hearing, or void proceedings outside the administrative context.
Procedural Due Process (Adminstrative)
Ang Tibay v. Court of Industrial Relations, G.R. No. L-46496, February 27, 1940
Established the cardinal primary rights that constitute procedural due process in administrative proceedings, including the right to notice, hearing, and a decision supported by evidence.
Bar use:
Cite when due process is raised in quasi-judicial or administrative actions.
Cases - Developments
Substantive Due Process
City of Manila v. Laguio, Jr., G.R. No. 118127, April 12, 2005
Doctrinal contribution:
Applied substantive due process to invalidate an ordinance that was overbroad and excessive, despite being justified under police power.
Bar use:
Use when an ordinance or statute goes too far, even if enacted for public welfare.
White Light Corporation v. City of Manila, G.R. No. 122846, January 20, 2009
Doctrinal contribution:
Clarified the modern substantive due process test: a regulation must have a real and substantial relation to a legitimate governmental purpose and must not be unduly oppressive.
Bar use:
Pair with Laguio to argue that a regulation is unreasonable or disproportionate.
Think Of It This Way
Due process is not about whether the government is right — it’s about whether it played fair.