A spike in gun seizures in NSW has intensified calls for a national ballistics testing system to help authorities link weapons to crimes. The latest police figures show nearly 4500 firearms have been seized in NSW since January 2011, with more than a third of those located in the past two months. Police Minister Michael Gallacher on Wednesday watched the destruction of 142 of these weapons, including a "Dirty Harry" style .45 calibre revolver, an Uzi submachine gun, a... (GunPolicy.org)