Andrew Mountbatten-Windsor (66), the disgraced former prince, has asked the High Court to throw out search warrants police used before they arrested him earlier this year.

The London court will hold a private hearing on Thursday, the judiciary said in a statement on Monday. King Charles III’s brother wants to challenge Thames Valley Police over searches at his former and current homes on royal estates.

Police arrested Andrew on his birthday on 19 February. They suspect him of misconduct in public office linked to his relationship with late American sex offender Jeffrey Epstein. Officers released him later that day but the investigation continues.

Andrew has denied doing anything wrong.

Police descended on the remote Sandringham royal estate in eastern England to arrest Andrew. They searched his home there and his former Royal Lodge residence in Windsor, west of London.

The Daily Telegraph first reported the legal challenge late on Sunday. The newspaper said this marks the first time a member of Britain’s royal family has challenged the lawfulness of criminal proceedings against them since the trial of Charles I in 1649.

Andrew’s legal team wants to examine whether the search warrants a judge granted at London’s Old Bailey court were lawful.

Andrew’s lawyers did not respond to a request for comment.

The judiciary’s press office confirmed “the case concerns an application by Andrew Mountbatten-Windsor for a judicial review to quash search warrants issued by a judge at the Central Criminal Court on 18 February 2026”.

Thursday’s hearing will deal with an application by Thames Valley Police to restrict access to court documents.

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The police force said in a statement: “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. As these legal proceedings are currently ongoing, it would be inappropriate for us to comment further.”

Andrew’s arrest and the police searches marked a new low for the disgraced ex-prince. Officials stripped him of his royal titles last year over his connections to Epstein.

Documents from the United States released earlier this year showed new details about the American financier. They included emails in which Andrew appeared to share potentially confidential information with Epstein.

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