Foreign Intelligence Surveillance Act Procedures to Ensure Accuracy ("Woods Procedures"), by Michael J. Woods, FBI Office of General Counsel, April 5, 2001
https://fas.org/irp/agency/doj/fisa/woods.pdf
FBI Director Mueller Explains the Significance of the Woods Procedures, in response to questions from Sen. Patrick Leahy, transmitted August 29, 2003
https://fas.org/irp/agency/doj/fisa/fbi082903.pdf