Dog walkers are being reminded to pick up after their pets.
Hertsmere Borough Council is urging irresponsible dog owners to stop leaving their animal's poo on pavements, parks and roads.
The authority has installed a number of bins for people to use at sites across the borough.
People who fail to follow the rules could be fined up to £75.
To report dog poo, call 0208 207 7480 or visit www.hertsmere.gov.uk/reportit