User blog comment:Station7/Illegal?/@comment-118736-20110929193347

The whole plot twist where Jack says he will resign and interrogate Prado as a "private citizen" was just Jack's way of persuading Buchanan to be more comfortable with the idea of putting him and Prado in the same place together. Before that point, Buchanan was unable to get around Marwan's gaming of the legal system through Norton/David Weiss. In short, yes it certainly seemed very unlawful, but CTU kept working with Jack because he gets the results needed in situations like that.