An Australian government department is trying to make former senator Rex Patrick pay up to $150,000 in legal fees if he loses a court case over documents about nuclear waste from the AUKUS submarine program. The dispute has angered politicians across the political spectrum and drawn in transparency groups.

Patrick was an independent senator for South Australia from 2017 to 2022. He used freedom-of-information laws to ask the government where nuclear waste from the AUKUS submarine fleet will be stored. Freedom of information, or FoI, is a system that lets citizens and parliamentarians request government documents that are not normally public. Patrick won an appeal in May 2026, meaning the government had to show him most of the documents about nuclear waste sites it is considering for AUKUS. But the Department of Industry, Science and Resources then appealed that decision to the federal court. The department is also asking the court to make Patrick pay the government's legal costs if he loses. Similar cases have cost as much as $150,000. Patrick has partially won a court order that caps the maximum amount he would have to pay, but the sum is still large.

The department says it is allowed to pursue these costs. Critics say it is breaking rules called model litigant rules. These rules require the government to behave fairly in court and not use its superior resources to pressure an opponent. Attorney General Michelle Rowland has stepped in directly. She wrote to crossbench politicians including Helen Haines, David Pocock, and David Shoebridge, saying the government could rightly insist Patrick pay costs if he loses. Rowland said the industry department was responsible for handling the FoI case.

The reaction has been sharp. Senator Jacqui Lambie accused Rowland of "behaving like a Labor stooge." Lambie and Senator Pauline Hanson both said the costs order breaks model litigant rules. Media and civil-society groups have also pushed back. The Media Entertainment & Arts Alliance, the Grata Fund, the Alliance for Journalists' Freedom, and the Australian Democracy Network all called on the government to drop the legal challenge. Unions and transparency groups appealed directly to Rowland but were turned away.

The broader context here is a clash between two things the government is supposed to do at the same time: be transparent by releasing information when asked, and handle taxpayer money responsibly in legal disputes. The AUKUS nuclear waste question is especially sensitive. The submarine program will last decades, and deciding where to store high-level nuclear waste is one of the most controversial parts of the pact. FoI requests like Patrick's are the main way Parliament and the public can check how the government is choosing waste sites and planning. When a tribunal has already said most of the documents should be released, a department's decision to take the case to federal court, and to attach the threat of a six-figure personal bill to the person who asked for the documents, works as a strong warning to anyone thinking of filing a similar request in the future.

The model litigant dispute is the key legal question. The government's own guidelines say agencies must handle court cases fairly and not use their greater resources to pressure opponents. The department's argument, that those rules do not stop it from seeking costs, is a narrow reading. If the court agrees, it would shrink the protection that model litigant rules give to people appealing FoI decisions. Rowland's response, pointing to the industry department as responsible for how the case is handled, fits that approach: the Attorney General supports the department's right to pursue costs while saying the decision was not hers. Whether that position survives political pressure is a different question from whether it is legally valid.

The cost-cap Patrick won is a partial shield, not a guarantee against financial harm. Even a capped bill in the tens of thousands of dollars is a heavy burden for an individual seeking documents that a tribunal has already ordered released. The effect reaches beyond this case. Any journalist, researcher, or politician thinking about taking an FoI refusal to court will now have to consider the possibility that the government will come after them personally for costs.

Patrick's case will depend on the federal court's judgment of both the FoI decision itself and whether the costs order is allowed. Whatever the outcome, the episode has already revealed a tension in how the government balances the secrecy surrounding AUKUS against its legal promise to be transparent. That gap is likely to grow as the submarine program moves forward.