Nikko N. Jones, serving 17 to 20.5 years for felonious assault and domestic violence, argued that Judge Kenneth Callahan of the Cuyahoga County Court of Common Pleas lacked jurisdiction to accept his October 2022 guilty plea and sentence him because Callahan had not been formally assigned to the case through a journalized order. Jones's case was initially assigned to Judge Nancy R. McDowell, but other judges presided during subsequent periods without proper assignment, according to his petition.

In a per curiam opinion joined by all seven justices, the court held that even accepting Jones's allegations as true, any procedural failure in judge assignment would not strip the trial court of subject-matter jurisdiction. The court emphasized that habeas corpus relief is generally available only when a prisoner's maximum sentence has expired or when the sentencing court 'patently and unambiguously lacked subject-matter jurisdiction.'

The court firmly rejected Jones's jurisdictional argument, explaining that improper assignment affects only a court's 'jurisdiction over the particular case and render[s] the judgment voidable, not void.' As the justices wrote, any 'procedural irregularit[y]' in judge assignment would not disturb subject-matter jurisdiction, and such claims 'can generally be adequately raised by way of appeal.'

The case reached the Supreme Court after the Fourth District Court of Appeals dismissed Jones's petition on both procedural and substantive grounds. The appellate court found Jones failed to comply with Ohio Revised Code Section 2969.25, which requires inmates filing civil actions against government entities to provide detailed information about previous litigation within five years.

Jones's petition was also procedurally defective because his required affidavit merely stated he had 'filed one (1) civil action within the past five (5) years' without providing the mandatory details required by statute. The court noted that 'compliance with R.C. 2969.25(A) is mandatory, and failure to comply will warrant dismissal,' citing precedent that inmates must include 'a brief description of the nature of the action, the name and number of the action and the court in which it was brought, the name of each party to the action, and the outcome of the action.'

The unanimous decision reinforces limits on habeas corpus relief, which the court described as available only in narrow circumstances involving expired sentences or clear jurisdictional defects. Jones's argument that judicial assignment irregularities warrant immediate release was firmly rejected, with the court noting that such claims are more appropriately addressed through direct appeal rather than collateral attack.