Żurek, who also serves as prosecutor-general, made the remarks to reporters on Friday, amid a mounting row over the country's top court.
Asked whether Constitutional Tribunal head Bogdan Święczkowski could face charges for blocking the judges, Żurek said he did not want to prejudge the outcome of the ongoing probe.
The four judges—Marcin Dziurda, Krystian Markiewicz, Maciej Taborowski and Anna Korwin-Piotrowska—were elected by parliament in March but have not been allowed to hear cases.
"There is an investigative team that is already working very intensively," Żurek said.
"I think that in the coming weeks we can expect some action from the prosecution service," he added.
Supporters of the opposition Law and Justice (PiS) party, which governed Poland from 2015 to 2023, gathered outside the Constitutional Tribunal on Friday, including lawmakers and members of groups affiliated with the party.
PiS deputy leader Przemysław Czarnek said the protesters were "defending the Constitutional Tribunal," which is Poland's highest court for reviewing whether legislation complies with the constitution.
"We are defending the Tribunal because it operates legally," Czarnek told the crowd.
He said the demonstration was a warning to the government of Prime Minister Donald Tusk and protesters responded by chanting: "We will chase them out."
Later, speaking to opposition-linked broadcaster Telewizja Republika, Czarnek said that if the government tried to "enter the tribunal by force," President Karol Nawrocki could provide the judges whom he considers legitimate with premises at the Presidential Palace or the president's office near parliament from which they could operate.
Protesters held banners reading "Stop Tusk's lawlessness" and "Constitutional Tribunal — the last bastion of the rule of law."
Anti-government protesters rally outside Poland's Constitutional Tribunal in Warsaw on Friday, Sept. 18, 2026. Photo: PAP/Radek Pietruszka
Święczkowski thanked those who demonstrated in support of what he described as the tribunal's independence and the judges' independence in a post on X.
"Every person who speaks publicly in defence of the Tribunal or in solidarity with it, or comes to protest outside the Tribunal, bears witness to their attachment to the constitution, freedom and civil rights," he wrote.
Nawrocki's chief of staff, Paweł Szefernaker, said on Thursday that the presidential palace was "monitoring the situation" around the Constitutional Tribunal.
The dispute over the four judges is part of a broader conflict over the Constitutional Tribunal, whose status and composition have been contested since changes made under the previous government.
The four judges elected in March were among six judges chosen by parliament to fill vacancies on the Constitutional Tribunal. On April 1, Nawrocki accepted the oaths of two of the six, Magdalena Bentkowska and Dariusz Szostek.
His office said the position of the remaining four required further examination because of alleged errors during their election by the lower house.
All six subsequently took oaths in parliament on April 9. Bentkowska and Szostek were admitted to the Constitutional Tribunal, but Święczkowski refused to allow the other four to hear cases.
Prosecutors opened their investigation on April 21 after Bentkowska and Szostek filed a complaint.
Investigators are examining the circumstances in which the four other judges were prevented from performing judicial duties.
Nawrocki said in early September that he would not change his decision to refuse to accept their oaths.
He argued that anyone seeking a seat on the Constitutional Tribunal should have exceptional legal knowledge and said the four judges should have known that they needed to meet the president before taking office.
Nawrocki said their decision to take an oath in parliament had created grounds to exclude them from the tribunal. He told reporters he had asked the Constitutional Tribunal to resolve a dispute over the respective powers of the president and parliament in the appointment process.
A seventh judge, Sławomir Patyra, was elected by the lower house in June and took his oath before Nawrocki on July 28.
Patyra immediately said he would refrain from taking part in tribunal proceedings until the four judges elected in March were allowed to hear cases.
On September 4, parliament elected Maciej Berek, a former minister responsible for overseeing implementation of government policy, as a Constitutional Tribunal judge. His election followed the end of the term of Judge Justyn Piskorski.
Berek is the eighth person elected by the current parliament to the tribunal. Nawrocki has not administered the oath of office to four of the seven previously elected judges.
Nawrocki's aides have argued that there were procedural errors in parliament's selection of the four judges.
The judges subsequently took an oath during a ceremony in parliament, using wording that said they were taking it "before the president."
The president's office does not recognize this as a valid oath, and Święczkowski has not allowed the four to sit on the panel and hear cases.
The four judges elected in March filed a complaint with the European Court of Human Rights.
In May, the court issued an interim measure ordering Poland to stop obstructing the four judges from taking up and performing their judicial duties.
The National Public Prosecutor's Office is investigating allegations that the president was facilitated in not administering the oath to the four judges and that they were subsequently prevented from adjudicating on the Constitutional Tribunal.
Meanwhile, the dispute has extended to Berek's qualifications.
Presidential spokesman Rafał Leśkiewicz said on Wednesday that Nawrocki would administer Berek's oath once he "presents documents confirming that he meets the formal requirements."
Zbigniew Bogucki, head of the president's office, has previously raised what he called "huge doubts" about whether Berek has the required 10 years of experience as a legal counsel.
In response to questions from the president's office about Berek, senior parliamentary official Marek Siwiec said that challenging parliament's election of a Constitutional Tribunal judge "has no basis in any legal provisions."
Bogucki said on Thursday that he had again sent a letter to lower-house Speaker Włodzimierz Czarzasty on the issue.
Before his election, Berek published on social media a certificate from the dean of the Regional Chamber of Legal Counsels stating that he had been entered on the list of legal counsels by a 2002 resolution and had held professional qualifications since taking the oath.
The document also said Berek had registered as practicing as a legal counsel from January 1, 2006 to July 31, 2009, and from August 1, 2012 to the present.
Former Prime Minister Mateusz Morawiecki, who heads the Development Plus parliamentary caucus, said on Saturday that the group would propose measures aimed at resolving the crisis surrounding the Constitutional Tribunal.
Morawiecki said the proposals would amount to "something like moving forward" after more than a decade of dispute over the tribunal.
"It has been 10 or 11 years, more or less, and we still have a huge dispute over the Constitutional Tribunal," Morawiecki said during a meeting with voters in the southern town of Trzebinia.
He said his group would present its proposals next week, arguing that the judicial system should not "repeatedly send cases back for reconsideration" because of disputes over how individual judges were appointed.
He described the situation as "madness, deliberate sowing of chaos and anarchy" and said the group would propose measures "so that Poles can once again have a fair justice system."
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Source: IAR/PAP, TVP Info