Police and Criminal Evidence Act 1984: "11 Meaning of “excluded material”. (1)Subject to the following provisions of this section, in this Act “excluded material” means—
(a) personal records which a person has acquired or created in the course of any trade, business, profession or other occupation or for the purposes of any paid or unpaid office and which he holds in confidence;
(b) human tissue or tissue fluid which has been taken for the purposes of diagnosis or medical treatment and which a person holds in confidence;
(c) journalistic material which a person holds in confidence and which consists— (i)of documents; or (ii)of records other than documents." This is also read into S.22(4) of the Terrorism Act 2000 - and thus is relied on by David Miranda's lawyers in the forthcoming judicial review 'via Blog this'