The Corrections Department will began quizzing new prisoners next year to assess their mental health.
New inmates will be screened for mental illnesses such as depression and anxiety from June next year.
Only acute mental illnesses are currently screened for and the department expects the number of inmates diagnosed with mental illness will more than double as a result, Radio New Zealand reports.
New prisoners will be asked a series of questions during their routine health screening, says Corrections national health manager Bronwyn Donaldson.
NZN