The overwhelming majority of scientific, peer-reviewed studies on the effectiveness of breed-specific legislation (BSL) have concluded that BSL is ineffective. The latest study (December, 2018) on the effectiveness of BSL was conducted to determine the public safety impact of BSL in the city of Odense, Denmark - the third largest city in Denmark with a population of over 180,000. In June of 2010, Odense enacted BSL which banned 13 different breeds including: American Pitbull Terrier, American Staffordshire Terrier, Tosa Inu, Fila Brasiliero, Dogo Argentino, American Bulldog, Boerboel, Kangal, and several other breeds. After analyzing a comprehensive dataset of serious dog bite-related injures from hospital emergency room records, the study concluded that BSL had "no effect" on serious dog bite-related injuries and that it agrees with "previous studies that have also shown a lack of evidence for breed-specific legislation". Furthermore, the study recommended that "future legislation should be prioritized on non-breed-specific legislation in order to reduce the number and risk of dog bites". This is just the latest of numerous studies that have concluded that BSL is ineffective.
Summary of the study:
Specifically, the study concluded:
While multiple peer-reviewed studies have concluded that BSL is ineffective and has no positive impacts, the negative impacts of BSL are clear:
We understand that some people believe that BSL is an effective policy; however, the scientific evidence strongly contradicts this opinion. The fact is that the overwhelming body of scientific research has concluded that BSL is not only ineffective, but also difficult and expensive to enforce with virtually no impact on public safety. Furthermore, from an ethical governance and public trust standpoint, enacting or enforcing any ban or policy that is based on stereotypes and junk science (such as BSL), instead of on peer-reviewed facts and expert information, constitutes a breach of the public trust and an abuse of public resources. Fortunately, BSL is a trend in decline with diminishing public support and we are confident that the facts and science will continue to support breed-neutral regulations for public safety over flawed and unsound policies such as BSL.
There is no evidence that breed-specific laws reduce dog bites or attacks on people and they divert resources from more effective animal control and public safety initiatives. Breed-based policies are based on myths and misinformation, rather than science or credible data.
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