A heavy police presence was expected in Nelson this weekend for an annual motorcycle gang poker run.
Participants in the event, staged by the Prospects 81 of Nelson, ride around various locations and collect playing cards from checkpoints.
It was being held in support of MediMax Ambulance, a private company that provided first-aid services to sports events around the region.
Controversy had surrounded the event because the ambulance company had continually refused to disclose the amount donated.
Nelson Bays area commander Inspector Mat Arnold-Kelly said the heavy police presence sent a clear message to gangs that Nelson would not tolerate poor behaviour on the roads or in the community.