Breed-specific legislation targeting dogs based on appearance has poor evidence for effectiveness in reducing bites while causing significant welfare harm to thousands of dogs and their owners annually.
Breed-specific legislation represents a welfare harm that is both direct — through the euthanasia of dogs with no history of aggression — and indirect through the stress of mandatory muzzling, registration burdens, and the forced relinquishment of companion animals to shelters where they may be killed. The welfare harm is compounded by the evidence that BSL does not achieve its stated goal of reducing dog bite injury rates: jurisdictions that have repealed BSL have not seen increases in bite incidents, while those that have adopted comprehensive owner responsibility programs have achieved substantial bite rate reductions. From a welfare perspective, effective dog bite prevention should focus on socialization quality, owner training, and management of individual dogs with demonstrated aggression — interventions that reduce bites while supporting rather than harming the welfare of breed-targeted dogs.