Background
Aaron Chase Mahon was indicted on October 8, 2024, for attempted first-degree murder following an altercation with Kenneth Ooton in which Mahon allegedly stabbed the victim. In May 2025, Mahon filed a pre-trial motion to dismiss the indictment, arguing that the evidence presented to the grand jury was insufficient to support the attempted murder charge.
The Mingo County Circuit Court granted the motion on July 1, 2025. Judge Joshua Butcher concluded that after conducting “a detailed review of the transcript of the meeting of the Grand Jury,” the State’s evidence “lack[ed] specificity” to establish probable cause. The judge noted that the grand jury was not presented with the victim’s medical records, drug and alcohol screens, a video of the altercation, or evidence regarding Mahon’s self-defense claims. The indictment was dismissed without prejudice.
The State of West Virginia then sought a writ of prohibition to prevent the trial judge from enforcing the dismissal order, arguing that the judge exceeded his legitimate authority by evaluating the sufficiency of evidence presented to the grand jury.
The Court’s Holding
The West Virginia Supreme Court of Appeals granted the writ of prohibition and prohibited the trial judge from enforcing the dismissal. The court held that a circuit court lacks authority to dismiss an indictment based on the court’s assessment of the sufficiency of evidence presented to the grand jury. The trial judge’s analysis of the evidence—and what evidence was or was not presented—was clearly erroneous and invaded the grand jury’s province.
The court explained that while circuit courts may examine an indictment for constitutional sufficiency, such review is “limited to the face of the indictment and does not extend to any evidence supporting the indictment.” Courts cannot look behind an indictment to inquire into the evidence considered by the grand jury, either to determine its legality or sufficiency, except in cases involving willful, intentional fraud. The court cited prior precedent in Gwaltney I and Gwaltney II establishing that “[a] circuit court may not grant a defendant’s pretrial motion to dismiss an indictment on the basis of the sufficiency of the evidence or whether a factual basis for the indictment exists.”
The State satisfied the factors for issuance of a writ of prohibition: it had no other adequate remedy such as direct appeal, it would suffer prejudice not correctable on appeal, and the trial court clearly erred as a matter of law. Notably, the defendant conceded the applicable precedent and agreed that the indictment should be reinstated.
Key Takeaways
- Circuit courts lack power to dismiss indictments based on evaluating the sufficiency of evidence presented to the grand jury.
- Judicial review of indictments is limited to examining constitutional sufficiency from the face of the document and does not permit examination of underlying evidence.
- The grand jury’s charging authority cannot be second-guessed by trial judges through post-hoc evidentiary analysis, absent fraud or misconduct by the prosecution.
- A writ of prohibition is the appropriate remedy when a trial judge impermissibly attempts to dismiss an indictment on evidentiary grounds.
Why It Matters
This decision reinforces the fundamental separation between the grand jury’s charging function and the judiciary’s adjudicatory role. The grand jury serves as an independent constitutional check on prosecutorial power; allowing trial judges to second-guess grand jury determinations based on their own assessment of evidentiary sufficiency would improperly shift that responsibility to the judiciary and undermine the grand jury’s structural function. Judge Butcher’s approach—conducting a “detailed review” of the grand jury transcript and substituting his judgment about what evidence should have been presented—directly violated this principle.
For prosecutors and judges, the ruling clarifies that once an indictment is issued, pre-trial dismissal motions based on the grand jury’s evidentiary record are categorically improper. This protects prosecutorial charging decisions from judicial micromanagement while preserving defendants’ rights to challenge indictments on constitutional grounds or to contest guilt at trial on the merits.