## Facts

- Crystal Shelly was charged in Oregon state court with first-degree robbery and first-degree burglary arising out of an incident at an apartment where valuable baseball cards and other property were taken.
- The state’s proof depended heavily on testimony from Lustri, the roommate of the victim whose apartment and property were involved.
- The defense theory focused in part on attacking Lustri’s credibility and showing that he had a reason to testify favorably for the state.
- At the time of trial, Lustri was on probation in an unrelated matter.
- The defense sought to cross-examine Lustri about (1) his probation status and (2) a recent incident that the defense contended violated his probation terms, to show that Lustri might fear adverse action or hope for favorable treatment from the state.
- The trial court barred that line of cross-examination and did not allow the jury to hear the probation-related facts offered to show bias.
- The jury convicted Shelly, and she appealed, arguing that the restriction on cross-examination improperly limited her ability to expose bias and motive to testify.

## Issues

1. Whether the trial court erred by prohibiting cross-examination of the state’s key witness about his probation status and a recent probation violation when the evidence was offered to show bias or motive to testify favorably for the state.
2. If the limitation was error, whether it was harmless beyond a reasonable doubt.

## Decision

- The Oregon Court of Appeals held that the trial court erred by preventing Shelly from cross-examining Lustri about his probation and the recent probation-related incident offered to show bias.
- The court explained that probation status and potential exposure to probation consequences can supply a reason for a witness to shape testimony to avoid trouble or to seek favor, making the evidence relevant to credibility through bias.
- The court relied on confrontation principles that protect a defendant’s ability to conduct otherwise proper cross-examination aimed at revealing a witness’s bias or motive, including the rule recognized in *Davis v. Alaska*.
- The court rejected the idea that the trial court could treat this as merely collateral credibility evidence and bar the inquiry in its entirety.
- The error was not harmless because Lustri’s testimony mattered substantially to the state’s case and the excluded inquiry concerned a concrete reason the jury could have used to assess whether his account was slanted.
- The convictions were reversed and the case was remanded.

## Legal Principles

- A criminal defendant has a constitutional right (under the Confrontation Clause and Oregon’s confrontation guarantee) to cross-examine prosecution witnesses on facts that may show bias, interest, or motive to testify for the state.
- Evidence that a prosecution witness is on probation may support an inference of bias because the witness is subject to state authority and may fear revocation or hope for favorable treatment.
- Trial courts may impose reasonable limits on cross-examination to control trial management concerns, but they may not bar all meaningful inquiry into a theory of bias based on identifiable facts.
- When a trial court wrongly excludes bias cross-examination of a major state witness, reversal is required unless the state shows the error was harmless beyond a reasonable doubt.

## Conclusion

In *State v. Shelly*, the Oregon Court of Appeals reversed Shelly’s robbery and burglary convictions because the trial court prevented any cross-examination of the state’s key witness about his probation status and a recent probation-related incident offered to show bias, denying the jury information it could have used to evaluate whether the witness had a reason to favor the prosecution.


State v. Shelly, 157 P.3d 234 (2007)