Brett Gerke, 52, of Columbus is charged with attempted unauthorized use of property, a first-degree misdemeanor, for allegedly using a law-enforcement computer network Oct. 16, 2008, to search for information about Samuel Joseph Wurzelbacher.
Wurzelbacher is a political commentator, Internet correspondent and former employee of a plumbing contractor who Republican Sen. John McCain referred to as "Joe the Plumber" in an Oct. 15, 2008, presidential election debate with Barack Obama, then a Democratic senator.
Wurzelbacher, 35, was videotaped by ABC News Oct. 12, 2008, questioning Obama about his small-business tax policy during an Ohio campaign stop.
Gerke did not enter a plea, but entered a diversion program Oct. 2, which typically results in the dismissal of a criminal charge, The Columbus Dispatch reported.
Gerke used a test account and password he received to search for information about Wurzelbacher and others, authorities allege.
He was working as a contractor for the Ohio Department of Insurance at the time of the computer checks, the newspaper said.
Gerke's attorney, Joseph Scott of Columbus, would not comment on the case.
Putin thinks Obama would save him if he were drowning
Rosie O'Donnell unveils nearly 50-pound weight loss