Bell is due to stand trial later this year charged with 20 counts of theft and dishonesty in relation to hundreds of thousands of dollars.

But a District Court judge recently criticised how Bell's case was investigated, including the decision by ICAC to refer it straight to the director of public prosecutions and bypass police.

However, the judge stopped short of agreeing to a defence application for a permanent stay of proceedings based on those issues.

On Monday, DPP Martin Hinton QC told the court that 11 matters either already before the courts or with his office were now "in a state of paralysis" because of the issues raised in the Bell ruling.

He wants those questions of law determined before the Bell case continues.

But Bell's lawyer, Marie Shaw QC, wants his case to proceed, first with an argument over the admissibility of evidence.

She told the court on Monday that it would be unfair to delay the proceedings, considering the long period of time since the charges were laid in 2017.

"My client has had this matter hanging over his head for a very long time," Ms Shaw said.

Judge Liesl Chapman said both arguments were compelling but she refused the DPP's application.

She ordered the case return to court next month for a hearing on the admissibility of evidence.

After failing in his stay application, Bell vowed to continue to fight to clear his name at his trial which will be heard by a judge alone.

The charges cover a period before he entered state parliament when he worked as an independent provider of educational programs.

Prosecutors have accused him of overcharging and falsifying invoices, accounts and meeting minutes.

As the member for Mt Gambier, he was first elected as a Liberal in 2014 but quit the party after his arrest in August 2017.

He was returned at the 2018 state election after contesting the poll as an independent.

Australian Associated Press