What counts as “worrying”

Attacking or chasing livestock — but also a dog simply being “at large” (off-lead and not under close control) in a field or near livestock. No bite is needed for it to be an offence.

Where it applies

Agricultural land, and — since the 2025 strengthening — extended to roads and paths, with a wider list of animals (now including camelids such as alpacas and llamas).

The penalties

The old £1,000 cap is gone — fines are now unlimited. Police can seize the dog and take samples as evidence, and a farmer may lawfully shoot a dog worrying their livestock.

Who’s liable

The person in charge of the dog at the time — that’s you, the walker. You can be prosecuted and sued for the farmer’s losses (injured or lost animals, vet bills, miscarried lambs).