Michelle Ellis, 32, faces 132 fraud and dishonesty charges after fraud squad detectives arrested her in Tamworth in early September.

Ellis is accused of being part of a criminal syndicate, which operated in Sydney between 2016 and 2018.

It's the police case that Ellis was part of the criminal ring and allegedly dishonestly obtained the identity information of victims through a mobile SIM card swap scam and then later used it for a financial benefit.

The 32-year-old woman did not appear in Tamworth Local Court last week, and remains in the community on strict bail conditions.

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Magistrate Julie Soars questioned police prosecutor Sergeant Rob Baillie about why no brief of evidence had been received by Ellis' defence team at the Tamworth Aboriginal Legal Service (ALS), or DPP prosecutors.

"It is a voluminous brief, three quite large boxes arrived on my desk yesterday [Tuesday]," he told the court.

Ms Soars told the sergeant to "keep the pressure on", and that there had been "too many delays".

She asked Sergeant Baillie to follow up on the brief as soon as possible, and "not the day before" the matter was scheduled for a court mention.

Ms Soars said the evidence was due to be handed over to the DPP almost three weeks ago.

"Even with our postal service, which is struggling under COVID, it's 20 days later," she said.

"We need to get going with this matter."

Sergeant Baillie explained to the court the process of serving the brief and said he knew it "isn't a perfect system".

Sergeant Baillie had previously requested the case be moved to Sydney to be dealt with.

"These are Sydney matters so ultimately they won't stay here," Ms Soars said.

But, because the brief had still not seen the light of day, Ms Soars adjourned the matter to December to keep an eye on it. Ellis will remain on bail.

She faces 84 allegations of dealing with identity information to commit an indictable offence; multiple counts of possessing identity information to commit indictable offence; dishonestly obtaining property by deception; dishonestly obtaining financial advantage by deception; knowingly dealing with the proceeds of crime; unauthorised modification of data with intent to cause impairment; and participating in a criminal group.

She has not been required to enter pleas.

As part of her bail conditions, Ellis has to report to police daily, and live in West Tamworth.

She is not allowed to get a passport or try and leave the country. She's also banned from using or possessing more than one mobile phone; must not contact any phone provider unless its for her sole phone account; and must provide police with her personal phone number.

Strike Force Naiooka was setup in January 2018 by the State Crime Command's Financial Crimes Squad to home in on those suspected of being involved in a fraud syndicate operating in Sydney's Inner West area over a two-year period up to 2018.

Detectives moved on a 37-year-old man in November 2018, arresting him in Redfern before charging him with 162 fraud-related offences. He remains before the court.

After extensive investigations, detectives travelled to Tamworth and arrested Ellis after she presented to officers at Tamworth Police Station on September 8.