The Ballarat Sexual Offences and Child Abuse Investigation Team allege the man, who The Courier cannot name for legal reasons, carried out the family violence against his partner in 2019 while their two children were present.

The pair separated seven months ago, but the accused man slowly started to move in with the complainant and their children at their Bacchus Marsh home.

Police informant Detective Senior Constable Millar told the Ballarat Magistrates Court on Wednesday the victim could not remember a lot about the incidents, which started in early 2019, because she often lost consciousness.

She said in early 2019, the man strangled his partner causing her to become unconscious, and he started to cry and apologised because he believed he had killed her.

Detective Senior Constable Millar said on December 30 a verbal argument started between the couple and the accused took the complainant's mobile phone and hand bag.

She said the man, aged in his 30s, made his partner sit in a wicker chair in the garage for four hours and told her she was not allowed to move.

He allegedly spat all over her body, called her 'ugly' and abused her over the four hours. The complainant was allowed to check on her children, who were inside the house, then she was forced to sit on the chair again.

Detective Senior Constable Millar said during the night, the accused man told the complainant to perform sexual acts, he hit her while she lay on a fold-out couch and had non-consensual sex with her.

"She was never allowed to say no to him," Detective Senior Constable Millar said.

She said the next day the woman was forced to sit in the wicker chair in the garage while the accused drank alcohol and listened to music. He allegedly threatened to kill her mother and brother.

The police informant said during the night, the man produced two firearms and pointed them to the complainant's head, with the barrel touching her skin. He allegedly told her to say goodbye to her children and made a clicking sound.

Detective Senior Constable Millar said the accused man forced the victim to sleep on the fold-out couch where he had sex with her despite her telling him, 'please don't do this'. As the complainant got up, she allegedly saw the handle of a gun sticking out of her handbag which caused her to have a panic attack.

The man was arrested at Bacchus Marsh on February 5 after police allegedly located three firearms and ammunition at his parent's house. Police believe they belong to the accused but will not know until forensic testing is completed.

Detective Senior Constable Millar said the complainant was concerned the accused would kill her if he was granted bail.

In testing the strength of the prosecution case, defence lawyer Adrian Lewin questioned whether there were eye witnesses to the alleged incidents, if there was evidence of the complainant's injuries and if the firearms had been linked to his client.

The police informant responded, saying the complainant's child was a key witness to the garage incident, the complainant did not go to a doctor and a forensic analysis of the firearms was under way.

"This is a case that stands or falls on the witness' version of events," Mr Lewin said.

He said his client had compelling reasons why he should be bailed because there would be a delay for a trial, the accused had stable accommodation, he had not offended for eight years and bail conditions could address the risks.

Magistrate Cynthia Toose refused bail because of the serious nature of the alleged offences and the accused man's prior criminal history, including weapons charges and breaches of court orders.

He was remanded in custody until a committal hearing in December. The man faces more than 20 charges, including recklessly causing injury, rape, false imprisonment and possessing firearms.

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