Mick Roelandts, firearms reform project manager for the New South Wales Police, looks at a pile of about 4,500 prohibited firearms in Sydney that have been handed in over the past month under the Australian government's buy-back scheme July 28. A total of 470,000 guns have been collected nationally, with owners receiving A$243 million (US$180 million) in compensation. The scheme was set up due to tighter gun laws brought in after the April 1996 Port Arthur massacre in which 35 people died when a lone gunman went on a shooting rampage.