Ney, through a spokesman, has denied allegations that he acted inappropriately in awarding the license to Foxcom. Other bidders for the contract have alleged that the selection process was flawed and politicized.
Federal law and House ethics rules bar members or their staff officials from taking anything of value in return for the performance of official acts.
The House ethics manual states, in capital letters: "Members and staff may never solicit a gift, or accept a gift that is linked to any action they have taken or are being asked to take."
Ney, who has formed a legal defense fund and hired an attorney, acknowledged recently that he had been subpoenaed as part of the Abramoff investigation.
Scanlon is the second person charged in the federal criminal investigation stemming from Abramoff's lobbying activities.
Last month, David Safavian was charged in an indictment with obstructing a federal investigation and making false statements to a federal investigator when he was questioned about a trip he took as Abramoff's guest while serving as a top official in the U.S. General Services Administration.
Safavian resigned his federal post in the White House Office of Management and Budget shortly before being arrested on the charges. He has entered a not-guilty plea.
According to the federal information made public Friday, the four tribes allegedly defrauded by Scanlon and Abramoff were located in Mississippi, Michigan, Texas and Louisiana; and the profits the lobbyists drew from each tribe ranged from a little over $1 million to $12 million.
