Bitter wash road

Af Garry Disher (2020)
Summary: Hirsh was a promising metropolitan officer – until he blew the whistle on a case of police corruption. Now he's been exiled to a one-cop station in South Australia's wheatbelt. Called a dog by his own cop brothers. So when he's sent to investigate gunfire up isolated Bitter Wash Road he suspects his 'back-up' might be the one to put a bullet in him. He's wrong. But the events that unfold turn out to be a lot more sinister
Summary: Hirsh was a promising metropolitan officer – until he blew the whistle on a case of police corruption. Now he's been exiled to a one-cop station in South Australia's wheatbelt. Called a dog by his own cop brothers. So when he's sent to investigate gunfire up isolated Bitter Wash Road he suspects his 'back-up' might be the one to put a bullet in him. He's wrong. But the events that unfold turn out to be a lot more sinister