The broken shore
(Book)

Series numeration from goodreads.com.

Originally published: Australia : Text Publiching Compsny, 2005.

Shaken by a scrape with death, big-city detective Joe Cashin is posted away from the Homicide Squad to a quiet town on the South Australian coast where he grew up. Carrying physical scars and not a little guilt, he spends his time playing the country cop, walking his dogs, and thinking about how it all was before. When a prominent local is attacked and left for dead in his own home, Cashin is thrust into a murder investigation. The evidence points to three boys from the nearby Aboriginal community; whom everyone wants to blame. But Cashin is unconvinced, and soon begins to see the outlines of something far more terrible than a simple robbery gone wrong.