Police blimps are vehicles used by the GCPD that first appear in On Leather Wings.
These surveillance dirigibles are utilised by the Gotham City Police Department to survey over Gotham City as crime detectors and deterrents.
Outfitted with radars, radio broadcast systems and search lights, the dirigibles assist in suspect pursuits and car chases by providing an eye in the sky to help direct police forces during the chase.
They were designed by Shayne Poindexter.