Andrew Mountbatten-Windsor has launched a High Court challenge against search warrants used by police before his arrest in February.
The younger brother of King Charles is seeking a judicial review of the warrants issued by a judge at the Central Criminal Court. The Judicial Office confirmed the legal action on Monday.
A private High Court hearing is scheduled for Thursday. The hearing will initially consider an application by Thames Valley Police to restrict access to court documents, the Judicial Office said.
Challenge Focuses on Search Warrants
The warrants allowed police to search Mountbatten-Windsor’s residence on the Sandringham Estate and his former home, Royal Lodge in Windsor.
His legal team is challenging whether the warrants were lawfully obtained.
Thames Valley Police confirmed it is involved in legal proceedings concerning the warrants.
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“Whilst our investigation into misconduct in public office continues, we are engaged in legal proceedings in relation to warrants previously obtained from the Central Criminal Court,” the force said.
Police declined to comment further because the proceedings are ongoing.
The case follows Mountbatten-Windsor’s arrest on February 19. He was detained on suspicion of misconduct in public office and later released under investigation.
Investigation Linked to Jeffrey Epstein
The police investigation followed allegations that Mountbatten-Windsor shared confidential government information with Jeffrey Epstein.
Mountbatten-Windsor served as a British trade representative between 2001 and 2011.
He has denied wrongdoing in connection with Epstein and has said he regrets their friendship.
The investigation followed the release of additional documents connected to Epstein by the US Justice Department.
Police have been examining whether information was improperly shared during Mountbatten-Windsor’s time as a trade representative.
The former prince has not been charged with an offence in connection with the investigation.
Former Prince Lost Royal Titles
Mountbatten-Windsor left official royal duties in 2019 after scrutiny over his relationship with Epstein.
King Charles later stripped his brother of his royal titles and honours in 2025.
He is now formally known as Andrew Mountbatten-Windsor.
The latest legal action represents a challenge to the police procedures surrounding the investigation. It does not determine whether the underlying allegations are proven.
The High Court hearing on Thursday will take place in private at the initial stage. The court will consider whether documents connected to the judicial review should remain restricted.
