In a Justice Department memo to the House Judiciary Committee in 1988, the Assistant Attorney General formally reviewed the recommendations of the HSCA report and reported a conclusion of active investigations. In light of investigative reports from the FBI's Technical Services Division and the National Academy of Science Committee determining that "reliable acoustic data do not support a conclusion that there was a second gunman", the Justice Department concluded "that no persuasive evidence can be identified to support the theory of a conspiracy in … the assassination of President Kennedy".