A former prisoner who spent years in maximum security says he cannot understand why it's costing so much to keep the Christchurch mosque gunman behind bars.
Newly released Cabinet papers reveal that $3.6 million has been approved to cover the first two years of the shooter's incarceration, including "increased security measures".
The cost works out at roughly $5000 per day - compared to about $300 a day for a regular inmate.
Arthur Taylor was one of the country's longest-serving prisoners.
He speaks to Gyles Beckford.
