Tax evasion and lying to Congress are the crimes to which the conduit, Italia Federici, will plead guilty according to The Hill.  Ms. Federici was the link between Jack Abramoff and top officials at the Department of the Interior according to prosecutors: 

Federici is set to admit in federal court on Friday that she helped to forge a connection between Norton’s top deputy and now-jailed lobbyist Jack Abramoff, according to court documents filed yesterday in U.S. District Court in Washington.

“During much of Griles’s tenure as [Department of the Interior] Deputy Secretary, defendant Federici served as a conduit for information between Abramoff and Griles in order to foster Abramoff’s and his client’s interests,” the court documents, filed by the Justice Department, state.

Federici is president of the Council of Republicans for Environmental Advocacy (CREA), which evolved from a group Federici and Norton founded in 1997 with tax activist Grover Norquist to push for Republican environmental goals. It originally was funded with money Federici received from an inheritance.