Detective Comics #759 2001

Detective Comics #759 features "Unknowing, Part Two," where Batman confronts the Mad Hatter, who is using tainted coffee to mind-control Gotham City police, including Detectives Montoya and Allen. Sasha Bordeaux, Bruce Wayne's bodyguard, is central to the unfolding mystery and her understanding of Batman's secret deepens. This issue is also notable for beginning "Trail of the Catwoman, Part 1," a four-part backup story by Ed Brubaker and Darwyn Cooke, which sees classic detective Slam Bradley hired to investigate the presumed death of Selina Kyle.