The Stacked Deck was a bar and pool hall in the Docks of Gotham. It was a hotspot for all kinds of criminals.
It was once used for a sting operation by the police and Batman to catch several villains in one go. Mad Dog once made a call in a phone booth and Batman, disguised as "Matches" Malone, used his lipreading skills to find out where he was going. Batgirl and Catwoman grilled The Chemist to find out who's chemicals were left at a crime scene that Catwoman was framed for.