Background
Glen Junior Couch was convicted in 1997 of first-degree kidnapping, first-degree unlawful sexual penetration, first-degree rape, and first-degree sexual abuse. He pleaded guilty to all charges. The victim had identified Couch as the assailant, though Couch initially admitted sexual contact while denying rape before entering his guilty plea. Prior DNA testing in 2008 identified male DNA on a vaginal swab with a 1 in 1,277 likelihood that it was not Couch’s DNA or that of his patrilineal relatives.
In 2023, Couch filed a motion for post-conviction DNA testing under ORS 138.692. He requested testing on vaginal swabs and various other evidence items including swabs from the victim’s labia and breasts, fingernails, bedsheet, underwear, nightgown, and pubic hair combings. The trial court granted testing on the vaginal swabs but denied testing on the other evidence. Couch appealed the partial denial.
The Court’s Holding
The Oregon Court of Appeals affirmed the trial court’s partial denial. Under ORS 138.692(6)(d), a court must order DNA testing only if there is a reasonable probability that exculpatory results would have changed the outcome of the original prosecution or prevented prosecution altogether. The appellate court found the trial court correctly applied this standard.
The court determined that only the absence of Couch’s DNA on the vaginal swab would have been exculpatory and likely to alter the prosecution’s outcome. The presence of Couch’s DNA on that swab made it implausible he did not commit the offense. The absence of his DNA on other evidence (clothing, bedsheets, breast and labia swabs, fingernails) would not realistically have prevented prosecution or changed convictions, given the victim’s eyewitness identification and the prior DNA findings. The court rejected Couch’s unsupported theory that law enforcement had planted DNA evidence as too remote to satisfy the statutory reasonable probability standard.
Key Takeaways
- Courts need not order DNA testing on all requested evidence items; they may grant testing on some items while denying it on others when only certain evidence meets the statutory exculpatory standard.
- The trial court properly focused on whether exculpatory results would have changed the prosecution or conviction outcome, not on whether such results would be theoretically possible.
- Eyewitness identification combined with DNA evidence from a critical location may preclude a finding that negative DNA results on secondary evidence items would change the prosecution’s case.
- Petitioner’s arguments regarding DNA planting and alternative patrilineal sources were preserved for appeal and not rendered moot by subsequent DNA results on the vaginal swab.
Why It Matters
This decision clarifies Oregon’s post-conviction DNA testing framework under ORS 138.692. It establishes that courts applying the reasonable probability standard must evaluate whether exculpatory DNA results would actually change a prosecution’s trajectory, not merely whether testing could theoretically produce different results. The ruling prevents defendants from obtaining DNA testing on all crime scene evidence simply because testing is technically possible.
For practitioners, the case underscores that in cases involving strong eyewitness identification and probative DNA evidence from the primary crime scene, negative results on secondary evidence items are unlikely to satisfy the statutory threshold for post-conviction testing. The decision also preserves appellate review of DNA testing denials even when inculpatory results arrive during the appeal process, ensuring that trial court determinations about exculpatory probability are evaluated based on the record before the trial court, not subsequent testing results.