About 63% of issues raised in habeas corpus petitions by state court prisoners are dismissed on procedural grounds at the U.S. District Court level, and about 35% of those issues are dismissed based on the allegations in the petition on the merits (on the merits has a different meaning than what it's used for here). About 2% are either "remanded" to a state court for further proceedings (which poses an interesting problem of federalism – the federal court usually issues a writ to the state prison to release the prisoner, but only if the state court does not hold a certain proceeding within a certain time), or, far less frequently, resolved favorably to the prisoner on the merits outright. About 57% of habeas corpus issues dismissed on procedural grounds in 1992 were dismissed for a failure to exhaust state remedies.