Farmers on the South Downs are asking dog owners to keep their pets on their leads when they are around sheep, after a number of serious attacks.
At this time of year, many ewes are pregnant and may miscarry their lambs if they feel stressed. Police are warning the dog owners that they could face prosecution if their animals are out of control around livestock. Malcolm Shaw reports.
The interviewees are: Tim Armour, a farmer; and Jan Knowlson - a ranger for the South Downs National Park.