In the Philippine legal system, adultery is classified as a crime against chastity under the Revised Penal Code (RPC). Specifically, Article 333 defines adultery as being committed by any married woman who shall have sexual intercourse with a man not her husband, and by the man who has carnal knowledge of her knowing her to be married, even if the marriage be subsequently declared void.
Prosecuting adultery is notoriously difficult because the law provides specific statutory and jurisprudential defenses that can lead to the dismissal of the case or the acquittal of the accused.
1. Consent or Pardon by the Offended Spouse
The most potent defense against a charge of adultery is the consent or pardon of the offended husband. Under Article 344 of the RPC, the crime of adultery cannot be prosecuted if the offended party has consented to the offense or pardoned the offenders, whether express or implied.
- Express Pardon: A clear, documented statement (usually in writing) where the husband forgives the wife and her paramour.
- Implied Pardon: This occurs when the husband, knowing of the adultery, continues to live with his wife or maintains marital relations with her. The law presumes that by "sleeping under the same roof" or continuing the cohabitation after discovery, the husband has condoned the act.
2. Lack of Knowledge of the Marriage (For the Co-accused)
While the wife cannot claim she didn't know she was married, the male paramour has a specific defense. For the man to be convicted of adultery, the prosecution must prove beyond reasonable doubt that he knew the woman was married at the time of the sexual act.
If the man can prove he was in good faith—believing the woman was single, widowed, or legally divorced (in cases of valid foreign divorces)—he may be acquitted, even if the wife is convicted.
3. The "Death Warrant" Defense (Article 247)
While not a defense that leads to an "innocent" verdict in the traditional sense, Article 247 of the RPC provides a special clarifying circumstance. If a legally married person surprises their spouse in the act of committing sexual intercourse with another person and kills any or both of them in the act or immediately thereafter, the penalty is merely destierro (banishment).
If the spouse only inflicts physical injuries, they are often exempt from punishment. This serves as a "justifying-like" circumstance based on the uncontrollable outburst of passion and obfuscation.
4. Prescription of the Crime
Adultery is a light felony in terms of its prescriptive period compared to capital crimes. Under the law, the crime of adultery prescribes in ten (10) years. However, because it is a private crime, the period begins from the day the offended party learned of the crime. If the husband fails to file the criminal complaint within the prescriptive period, the right of the State to prosecute is extinguished.
5. Total Extinction of Criminal Liability
There are specific instances where the liability is wiped out entirely:
- Death of the accused: If the wife or the paramour dies during the pendency of the case, the criminal action is dismissed.
- Amnesty: Though rare for private crimes, a general pardon by the State could apply.
Procedural Requirements as a Defense
The defense can often move for dismissal based on procedural failures unique to "private crimes":
The Requirement of Joint Complaint
The husband must file the complaint against both the guilty wife and the paramour, if both are alive. He cannot choose to sue only the paramour to protect his wife's reputation. If he excludes one without a valid legal reason (like death), the case against the other can be dismissed.
The "Clean Hands" Rule (Pari Delicto)
While not an absolute statutory defense in criminal law, Philippine courts have occasionally looked at the conduct of the husband. If the husband is also guilty of concubinage or has abandoned the family to live with another woman, while it does not technically "legalize" the wife's adultery, it strongly bolsters a defense of implied consent or abandonment, which may weaken the prosecution's standing.
Summary of Defense Strategies
| Defense Type | Legal Basis | Key Requirement |
|---|---|---|
| Pardon/Condonation | Art. 344, RPC | Must happen prior to the filing of the criminal complaint. |
| Good Faith | Jurisprudence | The male co-accused must prove ignorance of the marriage. |
| Prescription | Art. 90, RPC | Lapse of 10 years from discovery. |
| Affidavit of Desistance | Procedural | The husband formally withdraws his interest in prosecuting. |
Note on Void Marriages: It is important to highlight that under Article 333, the fact that a marriage is "subsequently declared void" is not a defense. The law maintains that as long as the marriage has not yet been legally annulled or declared a nullity by a court at the time of the sexual act, the parties are still bound by the duty of fidelity.