A woman who pushed her husband to his death told police her lies had made her "very unwell", according to a transcript of her confession.

Six years after Bruce Mouat's death, Susan Elizabeth Mouat was sentenced to 11 months home detention today, having admitted the manslaughter of her husband Bruce Mouat on the first day of her September trial.

Bruce Mouat suffered critical head injuries after falling down a set of steps outside the Hawera home he shared with her in July 2011 and later died in hospital.

Susan Mouat repeatedly told detectives Bruce Mouat had come home drunk and she was in bed when she heard him fall outside. A police investigation was closed without charges being laid, and a Coroner ruled his fall was accidental.

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However suspicious friends and family reported to police that Mouat had made a number of admissions that suggested she was involved in his death, including an alleged comment to her sister-in-law at Bruce Mouat's funeral: "How does it feel to hug a murderer?"

Mouat told the Coroner the comment was 'black humour', however Bruce Mouat's family, including his son, have said they always believed she wasn't telling the truth about the circumstances.

Susan Mouat's lawyer Russell Fairbrother QC didn't return calls this week, but documents released to the Weekend Herald reveal for the first time Susan Mouat's explanation of the events of that night.

According to a transcript of her confession to police- given after she was arrested and charged with manslaughter in October last year- Susan Mouat said she pushed Bruce Mouat in "self defence" and admitted she had lied.

Bruce Mouat's family say the sentencing gives them some closure but won't bring him back.
Bruce Mouat's family say the sentencing gives them some closure but won't bring him back.

"I'd just like, as I mentioned before, I would like...this to be over and to say that...the night Bruce died, previous to this I maintained that I had nothing to do with his death, but on the night that Bruce died... I had pushed him in a form of self defence because he was excessively drunk and I asked him to leave and that push resulted in his falling down the stairs and hitting his head which then resulted in his death," the transcript of her interview reads.

"I have been very unwell as a result of trying to keep that lie. I just wish for it now to be over and I'm ready. Please God everything will just be as it's meant to, so that's all I'd like to say."

She explained that she thought Bruce Mouat was cutting back on his drinking, and was "disappointed" and "really angry" that he was drunk. She alleged he was being "abusive and nasty".

"I was disgusted in the whole history of our relationship and I, I've had enough really."

She said he stumbled down the hallway and left through the front door but attempted to re-enter the home.

"I couldn't stand it and I just, with one hand, opened the door and then I pushed him away. I said, 'f--- off' and....that's when he fell...he must have fallen with such force and that's, I don't know, you know then I just said 'stay there' and I realised, like I pulled myself together I suppose and I just said, 'stay there, stay there, stay there,' and then I thought, oh God.'"

Her only intention with the push was to get him to leave, she told police.

"To this day it's a dream. The whole night was a dream...A very bad dream with a terrible outcome."

The couple had been together for a decade and according to a summary of facts, Bruce Mouat had applied for a protection order against Susan in 2006, but they married three years later.

In two interviews with police in 2011 Susan Mouat denied involvement in her husband's death. She repeated her denial at a subsequent interview years later, in August 2016.

Months later, in October last year, she admitted to police what had happened.

Family spokesman Simon Harrison said the family was disappointed with the sentence.

"Clearly we knew that the sentence wasn't going to bring Bruce back after six long years (and) the family respects the parameters with which the Justice has to sentence.

"This sentencing now gives us some form of closure but obviously we have to live with Bruce's death forever. He'll never be forgotten."

Asked if he believed Susan Mouat was remorseful, Harrison replied: "I accept that's what she said, and we'll probably just leave it at that."