Knowsley Council has now issued more than 4,000 fixed penalty notices in a tough crackdown on environmental crimes.
Enforcement teams have been patrolling the borough issuing £75 fines to people who are caught littering or failing to clean up after their dogs.
The council's enforcement officers have been supported over the last 15 months by officers from Kingdom Security to patrol the borough and keep it clean.
Knowsley Council's Cabinet Member for Corporate and Customer Services, Cllr Andy Moorhead, said: "Issuing this number of fixed penalty notices demonstrates our commitment to keeping the borough clean and tidy for the benefit of our residents.
"We have taken a tough stance on people who show no consideration for others when they drop litter or fail to clean up after their dogs.
"We have received a great deal of support from residents in this crackdown because we know that littering and dog fouling had been a real concern to them. We have also been contacted by other local authorities who want to follow our lead on this issue.
"I believe we are starting to see positive changes in people's behaviour. That, in turn, will help us to keep the borough cleaner and reduce the £1.9m we currently spend cleaning our streets each year."