Six members of a family crime ring are behind bars and four others are carrying out community work following a police operation.
The final sentences on the Costello family were delivered last month after nearly two years of court proceedings which saw more than 100 witnesses give evidence.
Parents Michael Dench and Anne Costello, their four sons Nicholas, Adam, Jonathan and Timothy Costello and four associates, were arrested in 2012 on several joint burglary charges as well as charges for theft of vehicles, cannabis cultivation and dealing and methamphetamine dealing.
Detective Graham Parsons said the arrests and the resulting convictions had led to a major drop in crime and a reduced burglary rate in Ohakune, with the offending group removed from the area.
Now there was an "increasingly positive environment at the high school and in the community". One of the Costello sons had been dealing cannabis to high school students.