Mount Isa Magistrates Court heard the charges against Josh Hoch and Nichole Ellen Limburg as the DPP updated the court in a committal mention on Wednesday, July 17.

The DPP advised the court that the 343 charges against Mr Hoch and one charge against Ms Limburg could not progress due to constitutional matters being heard in the Townsville Supreme Court.

"There is a constitutional challenge to some of the state charges, and the committal mention cannot progress until those matters are finalised," the DPP said.

"The constitutional matters are sitting on August 8-9 in Townsville Supreme Court, there was a mention in Supreme Court on July 16 and it was told that both parties are ready to proceed on that date.

"With respect to these matters in Magistrates Court, we will need to await the outcome of the constitutional argument first."

The committal mention of Mr Hoch and Ms Limburg was adjourned until Wednesday, October 16.

Josh Hoch faces 343 charges including counts of endangering the safety of a person in a vehicle with intent, falsification of documents, and fraud; and Nichole Ellen Limburg faces one charge of fraud after a protracted multi-agency investigation was conducted in January 2017.

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