Studies indicate that Rottweilers are responsible for about half of human DBRF (dog bite related fatalities) while pit-bull type dogs were involved in approximately one-third of human DBRF reported during the 12-year period from 1981 through 1992.
Note pit-bull type dogs. Pit-bull type dogs could cover any of a dozen bull-dog breeds.
Other breeds have also been responsible for homicides. There is document evidence that dogs of the following breeds had killed one or more persons: Rottweilers, German shepherds, huskies, Alaskan malamutes, Doberman pinschers, chows, Great Danes, St. Bernards, Akitas, and Pit-Bulls.
Although Rottweilers and Pit-bull mixes are most likely to kill or seriously maim, fatal attacks since 1975 have been attributed to dogs from at least 30 breeds.
Any dog, treated harshly or trained to attack, might bite a person. Any dog can be turned into a dangerous dog. The owner or handler is responsible -- not the breed, and not the dog.
An owner or handler might create a situation that places another person in danger by a dog, without the dog itself being dangerous
It is a falsehood to claim that any dog is more prone to attack than another because it is of a specific breed.
Breed specific legislation, like laws banning anything else, are just another avenue designed to enable lawyers to snake their way into people's pockets, and for government to dictate to people how best to live their lives.