Several Head Hunters gang members have been arrested in Christchurch this morning after a major four-month police investigation.
The members were charged with offences ranging from participation in an organised crime group to supplying the class-A controlled drug methamphetamine.
Multiple members and associates of the gang were also arrested in the past six weeks.
Detective Inspector Darryl Sweeney said those charged would appear before the courts over the coming days.
"This action is a clear signal to the gang and organised crime in general that the police will take action to dismantle and disrupt gang crime and the impact of drug dealing in our communities," he said.
"Violent crimes are a common feature of the methamphetamine supply chain, and the drug itself is linked to further criminal activity and social harm.
"Methamphetamine abuse and addiction has devastating effects for all those involved and we're reaching out to anyone we believe may have been affected by this supply to provide advice and referrals to the right support networks."
The Canterbury Offender Taskforce had taken a "strong line" on targeting gang criminals this year.
"More than 135 firearms, significant amounts of methamphetamine, cannabis and synthetic drugs have been seized by the offender taskforce this year, totalling millions of dollars.
"Anyone who is struggling with methamphetamine themselves, or who knows someone who is, is encouraged to seek help."
For anonymous help, the alcohol and drug helpline can be reached on 0800 787 797.
Any information relating to methamphetamine dealing should be shared with police.
Christchurch Police may be reached on 03 363 7400 or information may be shared anonymously to Crimestoppers on 0800 555 111.