The defendant, 21, was charged on Friday with assault and intentionally damaging the woman's laptop. It was alleged the defendant had smashed the woman's laptop to the floor then jumped on it when she had refused to go for a walk with him on January 11.

During a verbal argument one week later, the man had told the woman she could not leave him because he would return to jail and kill himself, according to documents tended in the ACT Magistrates Court on Saturday.

The woman had indicated she wanted to return to her home and the defendant grabbed her by the arms, causing "sharp pain", and let her go only after one minute despite the woman begging to be released, the documents said.

The defendant soon after grabbed the woman by the arms again and applied pressure for about three minutes, causing her to cry, while continuing to say he would kill himself and his death would be on her conscience.

Two days later, on Wednesday, the woman agreed to meet with the defendant at his residence after he said he would give her $100 and a gold chain. When he refused to hand over the items the woman returned to her car and said she would contact the police, at which point she saw the defendant race towards her vehicle with what she recognised to be a taser in his right hand, the documents said.

The woman accelerated and saw the defendant take out his mobile phone and scream into it that "she's coming". She accelerated away from the residence and was followed for a time through a number of streets in Canberra's south by a gold coloured sedan.

When the sedan had departed she pulled over and called police, but a Mazda car pulled up alongside her driven by the defendant, leading to a high-speed chase which included the defendant veering his car towards the woman's, documents said.

The woman sped up further and eventually parked at Woden police station and ran into the front office.

A prosecutor opposed bail on Saturday, with a police constable giving evidence in court the woman had told her she was fearful the defendant would come to kill her if he was released on bail, and that the defendant possessed a shot gun. The prosecutor told the court the defendant had been released on parole on November 10, and the Sentence Administration Board had been issued five formal warnings to the defendant in relation to the parole.

Magistrate Bernadette Boss refused bail, saying she was satisfied there was a likelihood the defendant would not appear, commit offences and endanger the welfare of the woman if he was released.

No pleas were entered. In an interview with police on Friday the defendant denied committing any of the charged offences, the court documents said.

The matter was adjourned to February 9.