TLG Explains the Law · Criminal Law

Malum Prohibitum Does Not Mean Guilty Without Proof

Even for malum prohibitum offenses, the State must still prove beyond reasonable doubt that the accused voluntarily committed the prohibited act.

The State must still prove the prohibited act beyond reasonable doubt. The Supreme Court acquitted an accused charged under Section 78 of Presidential Decree No. 705 because his participation in the prohibited act was not proven.

“Even in malum prohibitum offenses, the State must prove the voluntary commission of the prohibited act beyond reasonable doubt.”

The Rule

Violation of Section 78 of Presidential Decree No. 705 is malum prohibitum. However, this classification does not lessen the State's burden to prove beyond reasonable doubt that the accused consciously and voluntarily performed the prohibited act on charged forest land, without authority.

What Did the Supreme Court Decide?

The prosecution did not sufficiently establish that Isican personally entered, occupied, possessed, or installed the structures on the forest land. No witness saw him install the structures, and the exact location of the area within the Puguis Communal Forest remained unresolved due to conflicting survey evidence.

In Simple Terms

For some offenses, it doesn't matter whether you intended to break the law. But the prosecution must still prove that you actually did the prohibited act.

Why Is This Important?

Reasonable doubt remained on Isican's personal participation in the prohibited act. There was no direct evidence that he installed the structures, and the conflicting survey evidence created doubt on the exact location of the structures within the Puguis Communal Forest. In criminal cases, such doubt must be resolved in favor of the accused.

Practical Takeaway

Malum prohibitum offenses do not require criminal intent. The law punishes the voluntary performance of a prohibited act, regardless of good faith or absence of intent to disobey the law. However, the State must still prove that the accused consciously and voluntarily committed the act charged, and that the act occurred on the forest land without authority.

Case Citation

Pedro P. Isican v. People of the Philippines
G.R. No. 266431
January 29, 2026
Third Division
Dimaampao, J.

TLG Explains the Law infographic: Malum Prohibitum Does Not Mean Guilty Without Proof
TLG Explains the Law infographic. Tap to view full size.

How TLG Can Help

Facing a charge under a special law, such as forestry, environmental, or regulatory offenses? TLG can examine whether the evidence actually proves your participation.

Learn about our Criminal Litigation practice →

This post is for general information and educational purposes only. It does not constitute legal advice and should not be relied upon as a substitute for professional legal counsel. Every case depends on its own facts, evidence, and applicable law.

Next: Buyer in Good Faith: A Clean Title Is Not Always Enough

Facing a legal problem? Don't wait until your options narrow.

Many legal remedies have strict deadlines — appeals, labor claims, and responses to complaints among them. Speaking with a lawyer early protects your options.

Call Message Book Now