Lawyer for the Shoebridge family, Gordon Paine, told the hearing they thought coroner Anna Tutton, who took over the case when the first coroner died without releasing a decision, came into the hearing with a "closed mind" about where fault lay.
He also said her mother claimed that audio was switched off after she shared her affidavit via AVL during the inquiry, and she said she still had more to share.
However, the court's counsel assisting lawyer Kim Murray told the hearing the coroner had not invited the woman to say more and had actually made comments to wrap up the woman's testimony.
During this he said the coroner acknowledged sitting through the inquest wouldn't have been easy for the mother, that she hoped some of the woman's questions had been answered and then checked whether there was any other factors counsel wanted to bring up.
Murray said the utility of having another inquest is "virtually minimal" and asked what would happen in that, which hadn't already in the second inquest.
Justice Andru Isac also queried how the outcome of a third inquest would be different if there wasn't anything new.
Isaac said there were "quite a number" of important issues so he has reserved his decision, and said it may be "some time" before this is released.
WHERE TO GET HELP:
If you are worried about your or someone else's mental health, the best place to get help is your GP or local mental health provider. However, if you or someone else is in danger or endangering others, call 111.
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There are lots of places to get support. For others, visit: https://www.mentalhealth.org.nz/get-help/in-crisis/helplines/