A crackdown on dangerous dogs launched after attacks in Liverpool has shown "encouraging results", police said.
Anyone who sees a dog attack is asked to contact police
Merseyside Police officers have seized one animal, issued 14 verbal warnings and handed out 147 guides containing information for dog owners.
Operation Dogsafe, launched last week, involves police dog handlers patrolling parks and housing estates to lookout for irresponsible owners.
The campaign is being run with the RSPCA and Liverpool City Council.
Officers want to prosecute any owner who fails to act in a responsible manner with their dog in a public place.
They are also aiming to catch and convict any owner who commits a criminal offence involving a dangerous dog.
Sgt Lol Hanley, of Merseyside Police, said the force had received excellent feedback from the public.
"There has been a notable reduction in dog-related incidents across the whole area and we will continue to patrol key spots to ensure this progress is continued," said Ms Hanley.
"Along with our partner agencies, dogs believed to be high-risk breeds are being recorded onto a central database to ensure an intelligence-driven, co-ordinated response is taken to dog-related incidents.
"Anyone who sees a dog acting dangerously in a public place, or who believes a dog to be out of control, is asked to contact the police."
On Tuesday, it was reported that an 11-year-old girl had emergency surgery after being mauled by a dog in Toxteth.