Cruelty to animals generally falls into two categories: direct violence and neglect.
Many people look at breed to being responsible for the violence associated with aggression, but in reality it is "US" that are responsible for the behavior of these animals. In some cases these dogs don't even want to fight but are forced to anyway.
If you witness animal abuse or neglect, please contact your local humane society, animal shelter, or animal control agency immediately. In most areas, those agencies have the authority to enforce state and local laws related to animals and the capability to investigate and resolve these situations. They rely on concerned citizens to be their eyes and ears in the community and to report animal suffering. You can choose to remain anonymous, although giving your name to your humane agency will enable that group to follow up with you when necessary.
The majority of cruelty complaints stem from simple neglect of the animal, rather than deliberate abuse. The humane officer's biggest role is as an educator—informing well-meaning, but unknowledgeable, pet owners of the proper care of their pets.
State and local laws are written to protect the individuals being prosecuted as well as the animals involved. Such laws also determine how long the animals must be housed at the animal shelter while a case is being processed by the court system. Caring for animals seized in a cruelty case can be an expensive and time-consuming effort. When animals must be housed at the shelter for long periods of time while a case is being processed, it can create stress for both the animals and the staff.