The Attorney General believes lawyers for Kevin Spratt will wait until after the Corruption and Crime Commission finalises its investigation into his case before lodging any application for compensation.

Mr Spratt was tasered by police 14 times at the Perth Watch House and was later charged with obstruction.

That conviction was quashed in the Supreme Court yesterday, with the judge describing it as a miscarriage of justice.

Christian Porter says any application for compensation from Mr Spratt would be carefully considered.

"An application for either legal compensation or an application for ex-gratia has a range of legal rules that sit beneath it and they'll all have to be observed," he said.

"I can't make any comment until we get the application and I don't think counsel can make any application until the inquiry is finished."

Welcomed

The quashing of Kevin Spratt's conviction in the Supreme Court was welcomed by the Aboriginal and Torres Strait Islander Social Justice Commissioner.

The Commissioner, Mick Gooda, met Mr Spratt last year to discuss the possibility of his case being investigated by the Human Rights Commission.

Mr Gooda says the case raises worrying questions about the treatment of Mr Spratt and the WA police service.

"I understand there are other cases at the moment within WA in which magistrates have found there was no justification for the action that police have taken," he said.

"You've got to start thinking to yourself - is there a pattern here?"

Yesterday the court heard Mr Spratt pleaded guilty to obstructing police, despite having no recollection of committing the offence.

The officer who wrote the statement of facts testified earlier to the Corruption and Crime Commission (CCC) that he did not witness the events and had prepared the statement based on what other officers had told him.

The officer told the CCC he only realised the statement was inaccurate when the police internal affairs unit showed him closed circuit video from the night in question.

Justice Stephen Hall said yesterday he was satisfied that a miscarriage of justice had occurred and quashed the conviction.

Mr Spratt says he feels justice has been done and he wants to move on with his life.

"I couldn't remember nothing at all, just the way it happened, I couldn't remember nothing, I just pleaded guilty," he said.

Mr Spratt's lawyer says his client plans to apply for compensation.