Tyler Cassidy was a troubled kid. Police officers Colin Dods and Richie Blundell were working an afternoon shift in the Northcote divisional van. Their lives would collide on a balmy summer evening in late 2008 at a Northcote skate park. A distraught Cassidy, 15, was in no mood to negotiate with...

Very few people have heard of Detective Sergeant Dion Achtypis - but there may well be no more important investigator in Australia. You won’t see him holding a press conference at a murder scene or commanding a squad of detectives. And he doesn’t use a sledgehammer during raids - he gains access...