Crowds of people, many with their pets, gathered around City Hall for the Sunday afternoon protest.The campaign originated after a group of individuals - frustrated with lenient sentences handed out in animal abuse court cases - organised through social networks.George Anderson rescued the greyhound Norman, who had his ears cut off in an act of cruelty in order to hide his identity.Speaking to UTV, George said tougher sentences were needed for those found guilty of animal abuse.He said: "People are sick with the cruelty and abuse that is happening to animals and the courts are not handing out the appropriate sentences."People are walking free from court for the most horrendous crimes and it is not right."Stormont has to act to make sure people who abuse animals are properly dealt with and that they end up in prison," he said.Janice Watt, from the League Against Cruel Sports, is also chair of Crosskennan Lane Animal Sanctuary.She added: "The large turnout has been a pleasant surprise, but not altogether unexpected."We want those in authority to act if there is an animal abused, suffering or neglected and also to ensure that we have system in place that deals with their needs."And also that those responsible are punished and punished in a way that deters others."