Background
The Wyoming Supreme Court affirmed two concurrent felony sentences that gave Yzail Ashton Gauna 64 days of presentence-confinement credit, rejecting his effort to apply additional jail time that had already been credited to a sentence in a separate misdemeanor probation case. The decision reinforces a practical limit on sentence credit in Wyoming: when a defendant is held on matters in separate cases, time need not be credited across the cases unless the confinement resulted solely from an inability to post bond.
Gauna had three matters proceeding under separate docket numbers. One was a circuit-court misdemeanor case in which he faced probation revocation. The other two were district-court felony cases arising from alleged domestic violence and a later traffic stop in which he fought officers and tased one of them. He was jailed during portions of 2024 and 2025 while all three matters remained pending. In January 2025, the circuit court revoked his misdemeanor probation, imposed the remaining sentence, and credited the detention he had already served toward that sentence. Gauna finished the misdemeanor sentence on May 7, 2025, but stayed in custody awaiting resolution of the felony cases.
Under a combined plea agreement, Gauna entered Alford pleas—guilty pleas that permit a defendant to maintain innocence—to one count of interference with a peace officer and one count of domestic battery. The district court imposed concurrent terms of four to eight years in the two felony dockets. After Gauna moved to correct an illegal sentence under Wyoming Rule of Criminal Procedure 35(a), the court increased his credit from 56 to 64 days but declined his request for a total of 236 days. He appealed from both judgments, and the Supreme Court consolidated the appeals.
The Court’s Holding
Chief Justice Kate M. Fox Boomgaarden, writing for a unanimous court, held that Gauna received all the credit Wyoming law required. Whether a sentence includes the proper amount of presentence credit is a question of law reviewed de novo. A sentence that omits required credit is illegal, but the governing rule changes depending on whether concurrent sentences arise in one case or separate cases.
When concurrent sentences are imposed in a single case, the same presentence credit must be applied to each sentence. For concurrent sentences in separate cases, however, a defendant is entitled to credit against both minimum and maximum terms only when the confinement before sentencing was caused solely by the defendant’s financial inability to post bond while awaiting disposition. The Court applied its 2024 decision in Said v. State, which denied duplicative credit where separate criminal conduct, rather than inability to make bond alone, also caused the detention.
Gauna argued that Said was distinguishable because he had not committed additional crimes while released on bond and because the completed misdemeanor sentence could not later be ordered concurrent with the felony sentences. The Court found those distinctions irrelevant. Before May 8, 2025, Gauna remained in custody in connection with the misdemeanor probation revocation, and every one of those detention days was credited toward the misdemeanor sentence. His detention therefore was not attributable solely to an inability to post bond in the two felony cases. Once he completed the misdemeanor sentence, he received credit for every day through the felony sentencing. Wyoming law did not require the earlier days to be credited again.
Key Takeaways
- Wyoming treats concurrent sentences in separate cases differently from concurrent sentences imposed within a single case when calculating presentence-confinement credit.
- Credit across separate cases is mandatory only when the defendant’s confinement was due solely to financial inability to post bond in those cases.
- Time already credited to a probation-revocation sentence generally cannot be duplicated against later sentences in separate felony dockets.
- For a Rule 35(a) challenge, counsel should build a day-by-day custody record identifying every legal basis for detention and where each day was credited.
Why It Matters
The opinion gives Wyoming criminal practitioners a clear way to analyze overlapping custody. The controlling question is not simply whether the defendant was awaiting sentencing in multiple cases on a particular day. Counsel must determine why the defendant could not be released and whether another warrant, probation hold, revocation matter, or sentence independently supported confinement. If another matter contributed to the custody—and especially if the time was credited there—the constitutional concern about incarceration based solely on inability to afford bond does not compel duplicate credit.
Defense counsel should preserve detailed booking, bond, warrant, revocation, and sentence records before sentencing and identify the precise date on which any independent basis for confinement ended. Prosecutors and sentencing courts likewise should place their arithmetic and allocation on the record. Here, that scrutiny corrected an eight-day mistake, increasing Gauna’s award from 56 to 64 days, even though it did not support the much larger credit he sought.