Rather than telling citizens they must not drop litter, it seems to be saying they should pick it up.

BBC: Should we pick up other people's litter?

This, one assumes, is more than reminding people of their legal duties not to drop litter or let their dog foul the pavement.

BBC: Should we pick up other people's litter?

Barry Anderson, Conservative councillor for Adel and Bramhope, said it was time for people who drop litter to be given "a short, sharp shock".

BBC: Leeds City Council uses security staff as litter wardens

Residents who are violent, drop litter, keep untidy gardens and have nuisance pets also face being placed at the bottom of the repairs and improvements list.

BBC: North East Wales

Blaenau Gwent was the first in Wales to use a private contractor to back up its policy of fining people who drop litter, or dog walkers who fail to pick up their pet's mess.

BBC: Vale of Glamorgan hires Xfor over litter and dog mess