Half a dozen marae in Northland are being suggested as bail accommodation.
Currently people arrested on charges which would typically be bailed - such as first offenders and 18-year-olds - were being held in Auckland prisons because there was no accommodation available.
Marae could erect temporary 6-10 bedroom-type accommodation immediately to ease current bail application problems, a prisoner advocacy group has suggested.
The Sir Peter Williams QC Penal Reform League said those arrested and unable to obtain bail elsewhere could stay at marae, where the accommodation would be erected.
Spokesperson Lady Heeni Phillips-Williams said the marae could provide wrap-around-type services while those granted bail to the marae could assist around the marae.