Police are powerless to stop gun crime while weapons exist on Sydney's streets, the Police Commissioner, Andrew Scipione, has admitted, but he will consider lobbying for a gun amnesty if his officers request it. In an interview with The Sun-Herald, Mr Scipione compared gun crimes to car crashes, saying they were impossible to stop. But he said police were heavily focused on fighting the spike in shootings in Sydney's south-west. "There is no way I would suggest that... (GunPolicy.org)