A North-West Coast man locked his partner up in a dog cage and hosed her down with water, a Supreme Court jury in Launceston heard on Tuesday.
Bradley Lawrence Mykael Gee, of Burnie, has pleaded not guilty to persistent family violence against his partner between May 2018 to June 2019.
The Crown must prove at least three counts of violence to find Mr Gee guilty.
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In her opening address Crown prosecutor Lisa Pennington said that evidence would be given of eight separate incidents which included several assaults, two counts of wounding and one count of deprivation of liberty.
Defence counsel Julia Ker did not respond to the opening address.
The woman frequently wept as she gave evidence of the incidents in pre-recorded testimony.
When Ms Pennington began to ask about the cage incident the woman said: "Do I have to do this?."
She said they had been driving home in a car when he told her he would choke her.
When they arrived he told her to get into the dog box.
"He had my Winchester hunting knife so I did ," she said.
She said she had grabbed her three-year-old son from the car and got back into the dog box.
"He got a hose and and hosed us down with water," she said.
She felt it was like "ages" before he let her out .
She said that on one occasion she called him a f---wit.
She said she was facing away from him when he hit her on the head.
"I felt pain and it was warm real quick and my head was bleeding," she said.
When she asked him he told her he had used a black steel torch.
The woman said he had got angry when she spent a day away from the house in Ulverstone. He put his hands around her neck and grabbed her by the hair and tried to pulled her inside.
She said he had grabbed her arm and pulled, causing her shoulder to pop.
However, when police arrived she did not make a statement.
"It makes it very real when you make a statement," she said.
The defence submitted letters written by the woman to Mr Gee after the relationship ended.
Ms Pennington told the jury they would also hear audio phone calls between the pair after the violence, which the Crown would claim portrayed a consciousness of guilt.
"The accused says he regrets hurting her but wishes that the proceedings against him would not proceed and that she should say that she signed her statement under duress," she said.
The jury heard that the woman took a number of photographs of the injuries she allegedly received.
She said she wore long sleeve shirts and pants to hide bruising.
The trial before Justice Robert Pearce continues on Wednesday.