The jury trying Donna Catherine Parangi on a charge of the manslaughter of her eight-month-old grandson has gone home for the night.
It will resume its deliberations in the city's high court at 9.30am Tuesday.
The panel had been out for 90 minutes when Justice Graham Lang agreed to its request to return on Tuesday.
The trial had begun at 8.15am on Monday to suit a pathologist giving evidence from London. He was the sole witness for the defence.
Parangi pleaded not guilty a week ago to the manslaughter of eight-month-old Isaiah Neil (also known as Te Whetu) by depriving him of the necessaries of life and failing to take reasonable steps to protect him.