The show was originally scheduled to appear in 2004, entitled "Rapid Response". The pilot was shot, based on an episode of "Police Rescue" and starring Matthew Le Nevez, Paul Pantano, Libby Tanner and comedienne Corrine Grant in a dramatic part. It was not until the US writer's strike put a halt to Ten's US content that the show was resurrected (along with a revamped Good News Week), with a new cast (two of whom had just experienced success in another Melbourne-based crime drama on Channel Nine, "Underbelly"), edgier style and original script.
During the filming of season 3 Nicole da Silva suffered a broken leg whilst shooting an action sequence. There were a few amendments made to the story for the following couple of weeks while she remained on light duties.
Based on Victoria Police Force's Critical Incidental Response Team (CIRT).
Claire van der Boom was nominated for a 2009 Logie Award in the Most Outstanding Actress category for her role as Grace Barry.
Cell Phones used in the series is the Nokia N95