International bikie gang Bandidos has expanded into Christchurch in New Zealand, and a researcher says gang wars are inevitable.
There were rumours Bandidos established in South Auckland in 2012, but now there is no doubt the gang is in Canterbury too, University of Canterbury gang expert and lecturer Dr Jarrod Gilbert said.
Canterbury gang the Rock Machine was taken over by the Bandidos in a "patch-over", he said.
"What this means is the group is more likely to survive over time because the worldwide Bandido nation, as they call themselves, will lend the local chapter support."
And with Bandidos and the Hells Angels traditionally being bitter enemies, causing some serious conflicts in Australia, violence is likely, Dr Gilbert says.
"Whether or not these conflicts emerge in New Zealand is unclear, but I do feel that in a growing scene gang violence becomes somewhat inevitable.
"In a crowded room, someone is always going to get elbowed."
The arrival of Bandidos reflects a revitalisation of outlaw motorcycle clubs throughout New Zealand after a decade of decline, he says.
Australian bikie gang the Rebels Motorcycle Club made a move into New Zealand 2011.