This study examines the trends in and spatial distribution of recorded offending by Australian outlaw motorcycle gang (OMCG) affiliates at the onset of a territorial conflict between two clubs in the state of New South Wales.

Results show an increase in recorded offending by OMCG affiliates involved in the conflict and based in the disputed territory. Comparable increases in recorded offending by these clubs were not detected in the areas surrounding this territory or in the rest of New South Wales, and there was little mobility into the conflict region by those outside of it. There was a smaller, short-lived increase in recorded crime by affiliates of other gangs in the conflict region but not elsewhere. In short, changes in offending patterns were largely limited to the clubs involved in the conflict and localised to the territory in dispute.

This research can help guide focused law enforcement responses during periods of gang conflict.