By Elizabeth Hur

PHILADELPHIA (CBS) – A police officer – and the son-in-law of Governor Tom Corbett — is suspected of being on the wrong side of the law.

Governor Corbett said nothing to reporters leaving an event in Philadelphia on Thursday evening but later released this statement:

“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.”

Eyewitness News captured video of Gibson at the Governor’s inauguration in 2011. Gibson is a member of the Philadelphia Police Department and, according to sources, an investigator in the Narcotics field unit.

Thursday afternoon, sources tell Eyewitness News that the 43-year-old officer was removed from his street duties after a joint FBI and police sting operation caught him red-handed.

Sources say Gibson, who was assigned to conduct a car search, was allegedly observed taking money from the car — money that investigators had planted there. Sources also tell Eyewitness News that Gibson was later found allegedly in possession of that marked money. According to sources, this was a sting aimed at Gibson, following complaints authorities received about him.

A female inside Gibson’s Frankford home on Thursday night declined to identify herself and offered no comment.

The Philadelphia Police Department said in a statement:

“Today, January 31, 2013, an investigation of a Philadelphia Police Officer was conducted by the Federal Bureau of Investigation along with Philadelphia Police Department’s Internal Affairs Unit. As a result of this investigation the officer was removed from his duties and was placed on administrative duty pending the finalization of this investigation. The officer’s name is not being released because the officer hasn’t been arrested or formally charged at this time.”

Again, multiple sources tell Eyewitness News that it is Gibson who is at the center of this investigation, and that the Department’s Internal Affairs Unit is investigating.