Sir Brian Leveson

The provided news articles focus on various aspects of the UK justice system, including MI5 accountability, efforts to reduce court backlogs, concerns about potential changes to jury trials, and the perspective of the Victims’ Commissioner for England and Wales. None of the articles mention Sir Brian Leveson. Therefore, it is impossible to provide a summary about him based on the given information. The articles highlight ongoing debates and challenges within the legal system, particularly regarding access to justice, the rights of victims, and the role of jury trials.