A former South Australian Labor MP charged with blackmail will seek to call Opposition Leader Peter Malinauskas and a senior Labor Party official to give evidence at a preliminary court hearing.
Annabel Digance, 63, will also press on with an application to have the case against her thrown out as an abuse of process.
Ms Digance and her businessman husband Greg Digance, 60, who is facing the same allegations, appeared in Adelaide Magistrates Court on Tuesday.
Defence counsel told the court that if the prosecution was to proceed she would seek to call both Mr Malinauskas and ALP state secretary Reggie Martin to give evidence and be cross-examined at a preliminary hearing.
Prosecutors said such an application would be opposed.
The court was also told that written submissions had been provided to the court outlining why Ms Digance had no case to answer.
The 12 pages outlined why the defence argued the charges should be permanently stayed as an abuse of process.
The case was adjourned to a further hearing on November 18.
Ms Digance and her husband were arrested in April at their Strathalbyn home, south of Adelaide, over allegations they tried to blackmail Mr Malinauskas.
Police said previously it would be alleged the accused were involved in a common enterprise to obtain a personal gain by threatening to make allegations of misconduct by Mr Malinauskas.
It was understood that benefit involved Ms Digance being placed in a winnable spot on the Legislative Council ticket or being preselected for a safe Labor seat prior to the next state election in March 2022.
"It is important to be clear that the allegations did not relate to any form of criminal behaviour by Mr Malinauskas," police said in a statement at the time of the arrest.
"He is not being investigated by SAPOL for any criminal offence and is not suspected of any criminal offence."
The opposition leader first approached police in February last year.
He said previously he never thought he would find himself involved in such circumstances and reported the matter because it was the "right thing to do".
Ms Digance previously served in the SA parliament as the lower house member for Elder from 2014 to 2018 but lost her seat to the Liberals in the 2018 state election.
