Wisconsin Capitol Police have declined to investigate the leak of a state Supreme Court abortion order in June citing a conflict of interest, but the court’s chief justice told The Associated Press she is pursuing other options.

Chief Justice Annette Ziegler told AP via email on Thursday that she continues “to pursue other means in an effort to get to the bottom of this leak.” She did not respond to messages last week and Monday asking what those other means were. Other justices also did not return a request for comment Monday.

Ziegler called for the investigation on June 26 after the leak of a draft order that showed the court would take a case brought by Planned Parenthood that seeks to declare access to abortion a right protected by the state constitution. A week after the leak, the court issued the order accepting the case.

The draft order, which was not a ruling on the case itself, was obtained by online news outlet Wisconsin Watch. Ziegler said in June that all seven of the court’s justices — four liberals and three conservatives — were “united behind this investigation to identify the source of the apparent leak. The seven of us condemn this breach.”

Ziegler told AP last week that the justices asked State Capitol Police to investigate the leak. That department is in charge of security at state office buildings, including the Capitol where the Supreme Court offices and hearing chamber are located. The police are part of Democratic Gov. Tony Evers’ administration.

That created a “clear conflict” given the governor’s “significant concern about outcome of the court’s decisions in addition to being named parties in several matters currently pending before the Wisconsin Supreme Court,” Evers’ administration spokesperson Britt Cudaback said.

Evers is not a party to the case where the order was leaked, but he has been outspoken in his support for abortions being legal in Wisconsin.

Cudaback said Capitol Police had a conflict because any investigation “will almost certainly require a review of internal operations, confidential correspondence, and non-public court documents and deliberations relating to any number of matters in which our administration is a party or could be impacted by the court’s decision.”

However, Cudaback said Evers’ administration agreed there should be a thorough investigation “and we remain hopeful the Wisconsin Supreme Court will pursue an effort to do so.”

Ziegler noted that unlike the U.S. Supreme Court, the state Supreme Court does not have an independent law enforcement agency that can investigate.

Investigations into the inner workings of the Wisconsin Supreme Court are rare and fraught.

In 2011, when Justice Ann Walsh Bradley accused then-Justice David Prosser of choking her, the Dane County Sheriff’s Department led the investigation. That agency took over the investigation after the chief of Capitol Police at the time said he had a conflict. But Republicans accused the sheriff of having a conflict because he was a Democrat who endorsed Bradley.