On an unsealed road in central Australia one Saturday afternoon late last year, a police car flashes its lights and directs the driver of a non-descript sedan to pull over. The driver and his female passenger, a married couple in their mid-twenties, are directed to get out of the car. The police have been called to attend an incident in a nearby town where protracted fighting has been reported over several weeks and have stopped this car out of concern that its occupants might be en route to join the fray. They search the car for weapons, but uncover nothing of interest. The boot of the car is full of firewood, which the couple had spent the past hour collecting.