Dark Knight Batman: Having brazenly preyed upon Gotham’s scrabbling crime bosses, the Joker offers to eliminate Batman for a price. The Chechen and Maroni eventually accept the offer. By placing various hostages in peril, constructing seemingly untenable predicaments, the Joker pits the residents of Gotham against Batman to force the latter to reveal his secret identity. The Joker dons his Police Honor Guard attire for the purpose of publicly assassinating Jim Gordon.
Police Honor Guard Joker: Early in The Dark Knight, Batman interrupts a disorganized three-way melee between Chechen, the Scarecrow and a handful of bumbling Batman impersonators; he decides afterwards that his original costume is weighing him down. Looking for a lighter costume that will provide him with a greater range of head movement, Bruce Wayne consults with Lucius Fox. Relying upon detective skills, gadgetry, and honed fighting prowess, Batman discovers his greatest adversary in the form of the Joker.