Washington (CNN) Attorney General William Barr confirmed Monday that the Justice Department has been receiving information from Rudy Giuliani about his operation in Ukraine, solidifying the channels through which political dirt on the President's rivals has made it into the country's top law enforcement agency.

At an unrelated news conference in Washington Monday morning, Barr said that the Justice Department has an "obligation to have an open door to anybody who wishes to provide us information that they think is relevant" but expressed skepticism about the reporting, noting that Ukraine can be a dubious source.

As a result, Barr said, the Justice Department has put in place special precautions to ensure that Giuliani's information is "carefully scrutinized."

"There are a lot of agendas in the Ukraine, there are a lot of cross currents, and we can't take anything we receive from the Ukraine at face value. For that reason we had established an intake process in the field so that any information coming in about Ukraine could be carefully scrutinized by the Department and its intelligence community partners," Barr said.

"That is true for all information that comes to the Department relating to the Ukraine including anything that Mr. Giuliani might provide," he said.