The Commission for the Review of FBI Security Programs, better known as the Webster Commission, has delivered its report to the Attorney General, and it may now be downloaded as a 1.14 MB Adobe Acrobat (PDF) file from the U.S. Department of Justice website at:
http://www.usdoj.gov/05publications/websterreport.pdf
Substantive discussion of polygraph policy begins at p. 67 of the report (p. 79 of the PDF file).
An HTML version of the report is also available on the Federation of American Scientists website at: