Another from the staggeringly varied #yeahnoir pile
From the Blurb:
It's Broadway in Reefton, the new, booming 1870s gold town.
Suspiciously, Gordon Trembath, a naive young police constable has been left in charge over Christmas and New Year. He is immediately faced with investigating a murder carried out by sly-groggers in the valley.
In the meantime, the town has been invaded by "a collection of scamps, card sharps, liars and chats who have come to town for the pickings available in the holiday season."