A gang member has been charged in relation to an aggravated robbery and kidnapping in Christchurch last month.
The victim is still recovering after being allegedly assaulted in his Rolleston home on January 28, according to police.
The 23-year-old Black Power member is facing charges of aggravated robbery, kidnapping, burglary and possession of firearms.
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Two other men and a 21-year-old woman have also been charged.
"We know that it is common in gang culture for perceived debts to result in victims being harmed and held against their will, often for money or property," Det Sgt Daniel Isherwood said.
"Canterbury Police have recently arrested members and associates of the Mongrel Mob, Black Power and Tribesmen gangs for this activity."
He said convictions for aggravated robbery and kidnapping will "likely result in lengthy terms of imprisonment, both of which carry maximum terms of imprisonment of 14 years".
"These recent arrests should send a clear message to those involved in gangs that they should think very carefully before carrying out this type of offending," Mr Isherwood added.
"Prospects and associates of the gang need to know that Police will investigate all reports involving 'standover' type behaviour."