Pit bull terriers from the United States.From the United States and Canada to Spain and Singapore, the pit bull is one of the most heavily regulated dog breeds in the world.
Brazilian Samba.Like many others, this breed is restricted in many nations.
The English Bull Terrier.In 1998, Ireland's The Control of Dogs Regulations included a list of 11 breeds, including the English bull terrier.
Boerboel.Many countries have banned the importation of this muscular canine, including France, Bermuda, Singapore, and Denmark.
Dog breed: American Staffordshire terrier.Legislation poses serious challenges for Staffordshire terriers everywhere.
Rottweiler.Unfortunately, Rottweilers have earned a reputation for violence in many parts of the globe.