SIX people were searched for illegal drugs and legal highs when police swooped on Mandela Gardens.
The park, next to the Civic on Hanson Street, has become a top priority for the town centre policing team following reports of anti-social behaviour in the area.
Officers were joined on the operation on April 4 by police dog handler PC Paul Brackpool and his drugs detection dog Duke, who drew attention to five men and a woman gathered at the side of the Civic building.
PC Brackpool said: "There was a strong smell of cannabis on the approach and when the dog went down the line he indicated on them all."
All six were searched and spoken to by officers who seized cannabis and a packet of legal highs from the group.