A Victorian court has been told a psychologist who was found dead in her garage last year asked police to remove guns from a safe on her property before her former husband allegedly killed her.

Key points: A Victorian committal hearing has been told Adrian Basham grew increasingly aggressive prior to Samantha Fraser's death

A Victorian committal hearing has been told Adrian Basham grew increasingly aggressive prior to Samantha Fraser's death A friend of Ms Fraser's, along with her mother and father, all told the court they were concerned about Mr Basham's behaviour

A friend of Ms Fraser's, along with her mother and father, all told the court they were concerned about Mr Basham's behaviour Ms Fraser's mother said she tried to keep her grandchildren out of Mr Basham's way during a period when the whole family lived together

Former fly-in, fly-out construction worker Adrian James Basham, 42, is accused of killing his wife and the mother of their three children, Samantha Fraser, 38, at her Cowes home, south-east of Melbourne, on July 23, 2018.

Ms Fraser, who was working as a psychologist at the Cowes Medical Clinic, was found dead in her garage after failing to collect her children from primary school.

Ms Fraser's parents, Janine and Trevor Fraser have given witness statements at the committal hearing at the Latrobe Valley Magistrates Court.

Samantha Fraser's mother Janine broke down in tears while giving her evidence to the court. ( ABC News: Chris Sonneson )

Mrs Fraser said her daughter asked police to remove Mr Basham's guns from a safe in the garage of their home after she became concerned about "what Adrian might do".

The hearing was told that in June 2018, a month before Ms Fraser's death, she was notified that Mr Basham had made an application to have his firearms returned.

Mrs Fraser told the hearing she believed Mr Basham set fire to his wife's back fence and accused her of having an affair with a neighbour.

Mrs Fraser told the court accelerant was used to set fire to her daughter's back fence in Seagrove Way, Cowes, in early 2017, after Ms Fraser decided to end her marriage.

Mrs Fraser said Mr Basham warned her daughter that the fire showed how she needed him around to protect her.

"It was after the fire that Sam began to feel very unsafe," Mrs Fraser said.

"And she was diagnosed with PTSD (post traumatic stress disorder)."

The committal hearing is underway at Latrobe Valley courthouse. ( ABC News: Sarah Maunder )

Children's passports went missing, father says

"Adrian accused Samantha of having an affair with the neighbour, which was nonsense," Mrs Fraser told the court.

Ms Fraser's father, Trevor Fraser, told the committal hearing, the children's passports had gone missing.

Mr Basham, dressed in a suit and tie, shook his head, took notes, and on one occasion cried while the evidence was heard.

Ms Fraser and Mr Basham lived together with Ms Fraser's parents for a period of eighteen months to save money with the aim of building a home on a five-acre block at Smith's Beach, Phillip Island.

Mrs Fraser broke down in court as she explained how the family would accommodate Mr Basham's aggressive, controlling behaviour.

"[We would] make sure the children were bathed and changed before he came home, or that they were in bed to avoid confrontation," she said.

"Looking back, we realise just how much we did … when perhaps we should have confronted it more and helped Sam to confront it."

Mrs Fraser said Mr Basham demanded to know where Samantha was at all times and said she felt his alleged behaviour amounted to stalking.

Jogging friend went to police

Ms Fraser met her friend, Emily Bathgate, to go jogging most Thursday mornings.

Emily Bathgate told the court Adrian Basham refused to leave the family home when she decided to end the marriage. ( ABC News: Chris Sonneson )

Ms Bathgate told the court that Ms Fraser confided to her about problems in her marriage.

Ms Bathgate told the court she went to the police in June 2017 with a typed document to note her concerns about Mr Basham's behaviour, but said that it was ignored.

"I wanted the police to take my statement so his behaviour was noted somewhere," Ms Bathgate told the court.

"And they said they couldn't take it unless there was a direct threat to me."

The hearing continues.