Sanchez v. People — Colorado Supreme Court upholds revised reasonable-doubt instruction

Case
Alexis Teran Sanchez v. The People of the State of Colorado
Court
Supreme Court of Colorado, En Banc
Judge
Justice Boatright; Chief Justice Márquez; Justice Hood; Justice Gabriel; Justice Samour; Justice Berkenkotter; Justice Blanco
Date Decided
September 14, 2026
Docket No.
25SC148
Topics
criminal procedure; jury instructions; reasonable doubt; due process
Source
Read the full opinion

Background

Police responding to a reported hit-and-run encountered Alexis Teran Sanchez leaving a damaged vehicle. Officers observed signs of alcohol impairment, and Sanchez admitted driving and being involved in a collision, though he gave conflicting accounts of the incident.

A county-court jury convicted Sanchez of leaving the scene of an accident, failing to report an accident, and the lesser included offense of driving while ability impaired. The court gave the 2023 Colorado model instruction defining proof beyond a reasonable doubt as proof that leaves jurors “firmly convinced” of guilt and requiring acquittal if there is a “real possibility” the defendant is not guilty. The district court affirmed the convictions.

The Court’s Holding

The Colorado Supreme Court affirmed. It held that the 2023 model reasonable-doubt instruction is constitutional: its “firmly convinced” and “real possibility” language neither lowers the prosecution’s beyond-a-reasonable-doubt burden nor shifts any burden to the defendant.

Read as a whole, the instruction expressly placed the burden on the prosecution to prove every element and explained that highly probable proof is insufficient. The challenged phrases work together, the court concluded, by requiring substantial proof of guilt while clarifying that jurors need not acquit based on a fanciful possibility of innocence.

The court also found no reasonable likelihood that the county court’s voir-dire reference to a juror’s “best guess,” or the prosecutor’s brief closing statement that jurors needed to find Sanchez guilty of driving while ability impaired, caused jurors to apply a lesser standard. The court repeatedly explained that the burden remained entirely with the prosecution, and the prosecutor also reminded jurors they had to be firmly convinced.

Key Takeaways

  • Colorado’s 2023 model reasonable-doubt instruction is constitutional.
  • “Firmly convinced” and “real possibility” do not reduce the prosecution’s burden when read with the instruction as a whole.
  • Isolated trial remarks do not warrant reversal where the full record repeatedly and correctly states the beyond-a-reasonable-doubt standard.

Why It Matters

The decision confirms the validity of Colorado’s revised model instruction and rejects a due-process challenge to its central wording. Trial courts may use the instruction, but the opinion underscores the importance of repeatedly and accurately placing the burden of proof on the prosecution throughout the trial.

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