Judge acted unlawfully over hearing on Prince Philip’s will, court told

The Guardian is attempting to overturn decision that prevented media from attending hearing

A leading judge acted unlawfully by authorising a secret court hearing in which he decided that Prince Philip's will should be kept secret without notifying the media, an appeal court has heard.

On Wednesday the Guardian opened its legal case to overturn the decision that prevented media from attending the hearing, arguing that it was a serious interference with the principle of open justice.