There is an interesting decision about the scope of legal professional privilege by the First Tier of the General Regulatory Chamber (Information Rights) in the Ministry of Justice -v- The Information Commissioner & Shaw EA/2015/0160.
THE CASE
The applicant made a freedom of information request ...
For there to be any hope of a claim to privilege, the material in question must be confidential. Were these powerpoint slides really intended to be confidential? I doubt it. It would like Gordon Exall saying that his handout at a relief-from-sanctions seminar (a) is confidential and (b) amounts to advice to a client.