A Dorsey & Whitney lawyer who represented the government’s chief witness in the prosecution of former Alaska Sen. Ted Stevens has been cleared of any wrongdoing by a grievance committee that was asked by a federal judge to investigate possible witness coaching.

Judge Emmet Sullivan of the U.S. District Court for the District of Columbia referred the lawyer, Robert Bundy, to the committee in October 2008, during the Stevens trial, after the judge said he was concerned that Bundy was possibly coaching Bill Allen during his testimony. Bundy, of counsel to Dorsey & Whitney in Anchorage, Alaska, was in the gallery. Allen, former chief executive of VECO, an oil services company in Alaska, was on the stand.