Witness Exclusion Rule: When Courts Cannot Bar a Witness Who Heard Another's Testimony

The Supreme Court has clarified an important rule on witnesses in Philippine trials: a court cannot refuse to allow a witness to testify merely because that witness heard another witness's testimony, unless there was a prior exclusion order or a timely motion from the opposing party. The ruling in Design Sources International, Inc. v. Eristingcol (G.R. No. 193966, February 19, 2014) protects a party's right to present evidence while explaining the proper procedure for excluding witnesses.

The Dispute Behind the Case

Design Sources International, Inc. sold Pergo flooring to Lourdes Eristingcol in 1998. When the flooring developed bulges at the joints, Eristingcol demanded replacement. The company failed to comply, and she filed a complaint for damages in 2000.

During trial in 2006, the company presented Kenneth Sy as a witness. After his testimony, the company's counsel announced that the next witness would be Stephen Sy, who was already inside the courtroom. The opposing counsel objected, noting that Stephen had heard Kenneth's entire testimony. The trial court agreed and barred Stephen from testifying.

The Rule on Exclusion of Witnesses

Section 15, Rule 132 of the Revised Rules of Court governs witness exclusion. It states that a judge may exclude from the court any witness not currently testifying, so that the witness cannot hear other testimonies. The judge may also order witnesses to be kept separate.

The purpose of this rule is to prevent witnesses from being influenced by each other's testimonies, discouraging fabrication and collusion. However, the Supreme Court emphasized a critical limitation: without a motion from the opposing party or an order from the court, nothing in the rules prohibits a witness from hearing other witnesses' testimonies.

Why the Court Ruled for the Petitioners

The Supreme Court found that the trial court committed grave abuse of discretion. The records showed no exclusion order from the court and no motion from the opposing counsel to exclude witnesses before Kenneth testified. The opposing counsel's objection came only after Kenneth had already finished testifying.

The Court also rejected the Court of Appeals' reliance on People v. Sandal (54 Phil. 883 [1930]). In that case, a witness had defied an existing court order for exclusion. Here, no such order existed. The Court explained that the materiality of Stephen's testimony was irrelevant because the precondition for exclusion—a prior order or motion—was absent.

The Court further noted that the opposing counsel was remiss in protecting the client's interest by failing to raise the exclusion issue in a timely manner. A party is bound by the acts of counsel, including procedural mistakes, unless deprived of due process—which was not shown here.

Practical Takeaways

• A witness who hears another witness's testimony cannot be barred from testifying unless the court issued an exclusion order or a party timely moved for one.
• To exclude witnesses, counsel must request exclusion before or during the presentation of testimony, not after the fact.
• The exclusion rule under Section 15, Rule 132 is discretionary for the judge; it is not automatic.
• Courts cannot use the materiality of a proposed witness's testimony as a substitute for the proper exclusion procedure.
• Parties who fail to protect their rights through timely objections are bound by their counsel's procedural choices.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.