Do you know who the man behind the mask is who was captured on CCTV footage at Trafalgar House police station?
The man dressed as Batman hand-delivered a "wanted" man to police.
More top news
Police are concerned for the welfare of a teenager who has gone missing from East Yorkshire.
A young woman who was rescued from the River Aire in Leeds has thanked the people who saved her life - and issued a warning to others.
UKIP has held a conference in Hull as the party attempts to reassert itself as a political force.