Sources told The Philadelphia Inquirer Gerold Gibson had been put on desk duty following an FBI sting. Gibson, a narcotics detective, allegedly stole $400 in marked money federal agents and officers with Philadelphia Internal Affairs had placed in a car.
Corbett, in Philadelphia for an event sponsored by the Greater Philadelphia Chamber of Commerce, declined to answer reporters' questions about Gibson. WCAU-TV reported he released a statement a short time later.
"I was surprised and concerned to learn about the allegations regarding my son-in-law Gerold Gibson. Susan and I continue to give our family our love and support," the statement said.
Sources said Gibson is separated from Corbett's daughter, Katherine, who is a deputy attorney general assigned to the Philadelphia office.
Corbett, a Republican, served as Pennsylvania attorney general before becoming governor in 2011. He was born in Philadelphia but has spent most of his adult life in the Pittsburgh area.