In the Philippine legal system, marital infidelity is prosecuted under the Revised Penal Code (RPC). Specifically, when a husband engages in an extramarital affair, the applicable charge is Concubinage under Article 334. This is distinct from Adultery, which applies to a wife. Concubinage is considered a crime against chastity and is a private offense, meaning it can only be prosecuted upon a complaint filed by the offended spouse.
Legal Definition and Elements
To successfully prosecute a case for concubinage, the prosecution must prove that a married man has performed any of the following three specific acts:
- Keeping a mistress in the conjugal dwelling: The husband brings another woman to live in the same house where he and his legal wife reside.
- Cohabiting with her in any other place: The husband and his mistress live together as husband and wife in a separate residence (e.g., an apartment, a second home, or a hotel for an extended period).
- Having sexual intercourse under scandalous circumstances: This involves illicit relations that are performed with such public notoriety or lack of visual discretion that they offend public morals or cause a public outcry.
Unlike Adultery, where a single act of sexual intercourse is sufficient for conviction, Concubinage requires more specific conditions of "keeping," "cohabiting," or "scandal."
Documentary and Testimonial Requirements
Filing the case begins with the execution of a Complaint-Affidavit by the offended wife, which is then submitted to the Office of the City or Provincial Prosecutor for preliminary investigation. The following evidence is typically required:
- Marriage Certificate: A certified true copy from the Philippine Statistics Authority (PSA) to prove the subsistence of a valid marriage.
- Birth Certificates of Illegitimate Children: If the husband and the mistress have children together, these certificates (naming the husband as the father) serve as strong evidence of cohabitation or "keeping."
- Affidavits of Witnesses: Statements from neighbors, security guards, or relatives who can testify to seeing the couple living together, entering/leaving the residence at all hours, or behaving as a married couple in public.
- Documentary Proof of Residence: Lease contracts, utility bills (water, electricity, internet), or association dues in the name of both the husband and the mistress at a shared address.
Nature of Legal Evidence
In cases of Concubinage, direct evidence (such as catching the parties in the act of intercourse) is often difficult to obtain. Therefore, the court frequently relies on circumstantial evidence.
1. Cohabitation
Cohabitation does not require a permanent stay but implies a "dwelling together" in a scandalous or public manner. Evidence may include:
- Photos or videos of the husband and mistress in the vicinity of their shared residence.
- Social media posts (Facebook, Instagram) showing them traveling together, celebrating holidays, or identifying as a couple.
- Testimony regarding "holding out" to the public as husband and wife.
2. Scandalous Circumstances
This is the most subjective element. It involves acts that are so public and brazen that they create a negative impact on the community's sense of morality. Isolated or secret trysts generally do not meet the threshold of "scandalous circumstances" under Article 334.
3. Photographs and Electronic Evidence
Under the Rules on Electronic Evidence, screenshots of chats, emails, and social media interactions are admissible provided they are properly authenticated. These can establish the intimacy and the nature of the relationship.
Penalties and Legal Consequences
The penalties for Concubinage are notably lighter than those for Adultery:
- The Husband: Faces prision correccional in its minimum and medium periods (6 months and 1 day to 4 years and 2 months).
- The Mistress: Is not sentenced to imprisonment but is instead given the penalty of destierro (banishment). She is prohibited from entering a designated radius (usually 25 to 250 kilometers) around the residence of the offended spouse or any place specified by the court for the duration of the sentence.
Defense and Bars to Prosecution
There are specific legal defenses that can lead to the dismissal of a concubinage case:
- Consent or Pardon: If the wife agreed to the arrangement or has clearly forgiven the husband (either expressly or by continued cohabitation after discovery), the criminal action is barred.
- Pari Delicto: While not a complete defense in criminal law, evidence that the wife is also committing acts of infidelity can complicate the proceedings.
- Prescription: The crime of Concubinage prescribes in 10 years from the time the offended party learned of the crime.
The Role of Republic Act No. 9262
It is important to note that many legal practitioners now also file charges under R.A. 9262 (Anti-Violence Against Women and Their Children Act). Marital infidelity is recognized by Philippine jurisprudence (e.g., AAA vs. BBB) as a form of psychological violence, which often carries heavier penalties and allows for the issuance of Protection Orders (TPO/PPO) to keep the husband and mistress away from the wife.