Justice Department investigators have sought to have senior federal prosecutors take polygraph examinations in an effort to determine who leaked the name of a confidential informant in a Detroit terrorism case that has become a major embarrassment for the department, officials said Friday.
At the same time, leading Congressional Republicans have raised concerns about the leak of the informant's name and about the department's handling of the case, which led a federal judge in Detroit this week to throw out the terrorism convictions of two Arab immigrants accused of being part of a cell there.
In a pointed letter sent to the Justice Department last month and obtained this week by The New York Times, Senator Orrin G. Hatch of Utah, chairman of the Senate Judiciary Committee and regarded as the department's strongest advocate in Congress, questioned whether officials at the agency "are fully cooperating" in an investigation into the leak, "including submitting to polygraphs."
Congressional officials said they were concerned that the department, which after an investigation has placed blame for the collapse of the Detroit case largely on a single prosecutor, Richard G. Convertino, appeared to have resisted the idea of requiring polygraph examinations for a small group of officials who had access to the name of the informant.
http://www.nytimes.com/2004/09/04/politics/04terror.html