http://en.wikipedia.org/wiki/American_Pit_Bull_Terrier
Law
Main articles: Breed-specific legislation and Pit Bull
Twelve countries in Europe,[17] Australia,[18] Canada,[17][19] Ecuador,[20] New Zealand,[21] Puerto Rico,[22] Singapore,[23] and Venezuela[24] have enacted some form of breed-specific legislation on pit bull-type dogs, including American pit bull terriers, ranging from outright bans to restrictions and conditions on ownership.[17][25] The state of New South Wales in Australia places restrictions on the breed, including mandatory desexing, in order to ensure the eventual extinction of the breed in that state.[26][27] The dogs are often considered to be "dangerous" or "vicious".[25]