The Liberty Humane Society wants to give fight dogs the benefit of the doubt and help them find second homes.

According to the New Jersey SPCA, 100 percent of the animals involved in dog fighting are pit bulls. PETA believes pit bulls are the most abused breed on the planet and favors euthanasia over rehab for fighter dogs.

A number of shelters in the New Jersey share PETA's stance and utilize a no adoption policy for surrendered and abandon pit bulls. However, at Liberty, the pit bulls are put through an examination to see if they pose a threat to people and other animals.

"You just keep seeing dogs come in, sometimes they are the fighter dogs, sometimes they are the bait dogs," says Liberty's Janet Russell.

The shelter begins the test by penning the pit bulls for a period of seven days. After that week, the animals undergo a three-day test. The staff first tests how each animal responds to human contact by touching the animal in different spots.

Next, a dog will be tested for food aggression. A dummy hand tries to 'pet' the animal during meals. Unsafe animals may stiffen or begin to eat faster, the precursor to a growl.

If animal has passed the first two tests, the dog will next be checked to see how it acts around other animals. Any animal that does not past the final test must be adopted to a home where it will be the only pet.