G.R. No. 173956 ; August 6, 2008
Frisco F. San Juan, petitioner, vs. The Sandiganbayan and The People of the Philippines, respondents.

FACTS

Petitioner Frisco F. San Juan, former Chairman of the Public Estates Authority (PEA), along with numerous other public officials and a private contractor, was charged before the Sandiganbayan with violation of Section 3(e) of R.A. No. 3019 (Anti-Graft and Corrupt Practices Act) in relation to the President Diosdado Macapagal Boulevard Project. After pleading not guilty, the parties submitted pre-trial briefs. The prosecution reserved the right to present additional documentary evidence, a reservation objected to by the accused but nonetheless incorporated into the Pre-Trial Order issued by the Sandiganbayan. The order explicitly stated it was binding unless modified to prevent manifest injustice.
Trial commenced. Subsequently, the Office of the Special Prosecutor (OSP) filed a Manifestation with Motion for Additional Marking of Documentary Exhibits, seeking to formally present 137 documents. Petitioner opposed this motion, arguing it violated the pre-trial order and his constitutional right to be informed of the evidence against him. The Sandiganbayan granted the prosecution’s motion and later denied petitioner’s motion for reconsideration.

ISSUE

Whether the Sandiganbayan committed grave abuse of discretion amounting to lack or excess of jurisdiction in granting the prosecution’s motion for additional marking of exhibits after the pre-trial order had been issued and trial had commenced.

RULING

The Supreme Court ruled that the Sandiganbayan did not commit grave abuse of discretion. The legal logic is anchored on the nature and purpose of pre-trial and the court’s inherent control over its proceedings. A pre-trial order is not a rigid, immutable document but is designed to secure a just, speedy, and inexpensive disposition of the case. Courts retain ample discretion to modify such orders to serve the ends of justice and to prevent manifest injustice, as explicitly stated in the Sandiganbayan’s own Pre-Trial Order.
The prosecution’s reservation of the right to present additional evidence, though objected to, was recorded in the Pre-Trial Order. Furthermore, the Sandiganbayan had, upon request of the parties, allowed them time to propose modifications to the order even after trial began. Thus, the allowance of additional exhibits was a valid exercise of judicial discretion to ensure a full and fair trial on the merits. The Court emphasized that petitioner’s right to due process was not violated, as he retained the full opportunity to object to the admissibility of these additional documents during the trial proper. The Sandiganbayan’s actions were procedural adjustments well within its authority to manage the trial efficiently and justly.