The transportation of the mosque gunman from Auckland to Christchurch is shrouded in secrecy.
The Australian national will appear in person at the High Court at Christchurch on Monday - when he's sentenced on 51 murder charges, 40 attempted murder charges, and one terrorism charge.
He's being held at Paremoremo Prison in Auckland.
The Department of Corrections won't comment on when or how the 29-year-old will travel to Christchurch.
It says that information would pose a serious and significant risk to his secure management - which would compromise the safety of staff and the public.