Mr Davis also congratulated seven prisoners for completing the 17-week Level 3 New Zealand Certificate in Construction Trade Skills Painting, run by Northtec.
"This qualification gives them a much better chance of finding work in the construction industry once they've served their sentence," he said.
"It's a big foot in the door. They can start out as a labourer, brush-hand or apprentice, and then go on to work as a painter with some further training and experience.
"The graduates should be proud of what they've achieved, and I have urged them to make sure they put their new skills to good use once they're outside the wire. That's the only way they can build a better life for themselves and their whanau.
"The safety of our community is paramount, and the best way to ensure this is by rehabilitating prisoners and removing barriers to them settling back in. This programme is just one of the ways we're making this happen," he added.
The prison and NorthTec have been working together for more than eight years, providing programmes including carpentry, forestry and horticulture.