My Lords, I thank the noble Lords, Lord Rosser and Lord Paddick, and the noble and learned Lord, Lord Thomas, for tabling this amendment.
Briefly, a duty of candour would bring about a change of mindset and culture by requiring openness and transparency about what has happened in investigations. It would lead to a more efficient deployment of resources, which would have a beneficial impact on the public purse. It could very much help to contradict allegations of police corruption and will grow confidence in the leadership of the police service because there would be a statutory obligation of openness and transparency, and therefore an assumption there would be compliance with the law rather than a suspicion of cover-up or, even worse, corruption. The amendment is framed to protect all necessary matters but to enable a different positive approach to the delivery of policing. I support the amendment.