My benchmark for domestic crime novels is Peter Temple, who I think is an exceptional writer, and making comparisons can be quite unfair.
There's quite a lot of promise in Dale's work. The original crime in this cold case is not complex and, frankly, neither are the characters. This is a straightforward cold case that resonates quite realistically, especially given it took place in Sydney in the crooked nineties.
The primary protagonist, rookie Detective Telegonus, is an interesting and deep thinking young police officer, but his thoughts were often quite repetitive and his logic regularly becomes quite circular. There are quite a few loose ends, perhaps to be picked up in a sequel? Telegonos's relationships with Olivia and Tran are not resolved, and while there may be good reason to leave the crime hanging, there's no need to leave all of the relationships, barring the one with his senior partner, unresolved.
Having said that, the narrative is solid, the dialogue is spare, authentic and effective, and I'll definitely read another John Dale.