Lucas vs. Lucas

A prima facie showing or a reasonable possibility of paternity is required before a court may issue a DNA testing order in a filiation case. This requirement serves as a counterpart to probable cause in the constitutional protection against unreasonable searches and seizures, safeguarding putative fathers from harassment suits.

Petitioner Jesse U. Lucas filed a petition to establish illegitimate filiation against respondent Jesus S. Lucas, alleging that he was the product of an intimate relationship between his mother, Elsie Uy, and respondent in 1967. Respondent allegedly provided support for two years. The petition sought DNA testing. Respondent, without being served summons, filed a special appearance and opposed the petition, arguing that DNA testing should not be allowed without a prima facie case and that the petition was defective.

• The Filiation Claim: In 1967, petitioner's mother, Elsie Uy, met respondent while working at a nightspot in Manila. An intimate relationship developed, resulting in petitioner's birth on March 11, 1969. Petitioner's certificate of live birth did not state his father's name, but his mother later identified respondent. Respondent allegedly provided financial support for approximately two years until the relationship ended.
• The Petition and Initial Opposition: On July 26, 2007, petitioner filed a Petition to Establish Illegitimate Filiation with a Motion for DNA Testing. Respondent was not served summons but learned of the petition. He filed a Special Appearance and Comment, questioning the court's jurisdiction over his person, the propriety of publication, and the basis for DNA testing.
• The RTC's Shifting Rulings: The RTC initially set the case for hearing and ordered publication. On respondent's motion for reconsideration, the RTC dismissed the petition on July 30, 2008, ruling that petitioner failed to establish the four procedural aspects of a paternity action under Herrera v. Alba, particularly a prima facie case. Petitioner sought reconsideration, and the RTC reversed itself on October 20, 2008, holding that the petition was sufficient in form and substance and that the Herrera aspects were evidentiary matters for trial. The RTC denied respondent's subsequent motion for reconsideration on January 19, 2009.
• The CA's Reversal: Respondent filed a petition for certiorari with the CA. The CA reversed the RTC, dismissing the case. It held that the RTC did not acquire jurisdiction over respondent's person due to lack of summons and that DNA testing should not be allowed without a prima facie case to prevent harassment and extortion.

• Jurisdiction over the Person: Petitioner argued that the CA erred in resolving the issue of jurisdiction over respondent's person because it was never raised in the certiorari petition. At any rate, respondent voluntarily submitted to the trial court's jurisdiction by filing motions seeking affirmative relief and expressly waiving summons.
• Form and Substance of the Petition: Petitioner maintained that the body of the petition, not the caption, is controlling. The petition is adversarial in nature despite the caption lacking the respondent's name.
• DNA Testing and Prima Facie Case: Petitioner asserted that the motion for DNA testing is not a ground for dismissal. Section 4 of the Rule on DNA Evidence does not require prior proof of filiation. The four procedural aspects of a paternity case under Herrera v. Alba are matters of evidence to be taken up during trial, not at the motion to dismiss stage.

• Jurisdiction over the Person: Respondent countered that the issue of jurisdiction was raised in relation to the claim that the petition was not in due form and substance.
• Conditional Appearance: Respondent argued that the alleged waiver of summons and voluntary appearance was conditional upon a court finding that summons was required. Asserting affirmative defenses does not constitute a waiver of the defense of lack of jurisdiction over the person.

• Nature of the Action and Jurisdiction: Whether a petition to establish illegitimate filiation is an action in personam, requiring service of summons for the court to acquire jurisdiction, or an action in rem, where jurisdiction is acquired by filing and publication.
• Sufficiency of the Petition: Whether the petition states a cause of action despite allegations based on hearsay and the absence of the defendant's name in the caption.
• DNA Testing Order: Whether a prima facie showing or a reasonable possibility of paternity is necessary before a court can issue a DNA testing order.

• Nature of the Action and Jurisdiction: A petition to establish illegitimate filiation is an action in rem. Jurisdiction is acquired by the court over the res upon the filing of the petition, not by service of summons. Publication validates the proceeding and serves as notice to the world. Service of summons is not jurisdictional but is required only to satisfy due process, which was met here because respondent participated and had the opportunity to oppose the petition.
• Sufficiency of the Petition: The petition is sufficient in form and substance. It is adversarial in nature because the notice requirement was satisfied through publication. It satisfies the requirement of a plain, concise, and direct statement of ultimate facts under Section 1, Rule 8 of the Rules of Court. The contention that the allegations are hearsay is a matter of evidence that cannot be resolved in a motion to dismiss, which hypothetically admits the truth of the facts alleged.
• DNA Testing Order: A prima facie showing or a reasonable possibility of paternity is required before a court may issue a DNA testing order. Ordering a compulsory DNA test constitutes a "search" under the constitutional protection against unreasonable searches and seizures; thus, a preliminary showing akin to probable cause is necessary to protect putative fathers from harassment suits. The issuance of a DNA testing order remains discretionary upon the court, which may consider factors such as the absolute necessity of the test or the existence of a preponderance of evidence.

• Action in Rem in Filiation Cases — A petition to establish illegitimate filiation is an action in rem. Jurisdiction is acquired over the res upon the filing of the petition, provided the court has subject-matter jurisdiction. The proceeding is validated through publication, which serves as notice to the world. Service of summons is not jurisdictional but is required only to satisfy due process.
• Prima Facie Showing for DNA Testing — Before a court may issue a DNA testing order in a paternity or filiation case, the moving party must present prima facie evidence or establish a reasonable possibility of paternity. This requirement serves as a counterpart to probable cause in the constitutional protection against unreasonable searches and seizures, protecting putative fathers from harassment suits. The issuance of the order remains discretionary upon the court.

• "In an action in personam, jurisdiction over the person of the defendant is necessary for the court to validly try and decide the case. In a proceeding in rem or quasi in rem, jurisdiction over the person of the defendant is not a prerequisite to confer jurisdiction on the court, provided that the latter has jurisdiction over the res."
• "Although a paternity action is civil, not criminal, the constitutional prohibition against unreasonable searches and seizures is still applicable, and a proper showing of sufficient justification under the particular factual circumstances of the case must be made before a court may order a compulsory blood test."
• "A prima facie case is built by a party’s evidence and not by mere allegations in the initiatory pleading."

• Herrera v. Alba, 499 Phil. 185 (2005) — Distinguished. The four significant procedural aspects of a traditional paternity action (prima facie case, affirmative defenses, presumption of legitimacy, physical resemblance) are matters of evidence to be confronted during trial, not grounds for dismissal at the initiatory stage based on mere allegations.
• Alba v. Court of Appeals, 503 Phil. 451 (2005) — Followed. Cited for the proposition that in proceedings in rem or quasi in rem, jurisdiction over the person of the defendant is not a prerequisite to confer jurisdiction on the court, provided the latter has jurisdiction over the res.
• In the Interest of J.M., 590 So.2d 565 (1991) — Followed. Cited for the rule that a preliminary showing of a reasonable possibility of paternity must be made before a court can constitutionally order compulsory blood testing in paternity cases, as such an order constitutes a search.

• Section 1, Rule 8, Rules of Court — Requires the complaint to contain a plain, concise, and direct statement of the ultimate facts upon which the plaintiff bases his claim. Applied to hold that the petition to establish illegitimate filiation was sufficient in substance.
• Section 4, Rule on DNA Evidence (A.M. No. 06-11-5-SC) — Provides the conditions for the issuance of a DNA testing order (existence of a biological sample, scientific validity, potential to produce new information, etc.). Supplemented by the ruling that a prima facie showing or reasonable possibility of paternity is a condition precedent to the issuance of the order to protect against harassment.

Antonio T. Carpio, Diosdado M. Peralta, Roberto A. Abad, Jose Catral Mendoza