(1) Personal data which are processed only for the special purposes are exempt from any provision to which this subsection relates if -
(a) the processing is undertaken with a view to the publication by any person of any journalistic, literary or artistic material,
(b) the data controller reasonably believes that, having regard in particular to the special importance of the public interest in freedom of expression, publication would be in the public interest, and
(c) the data controller reasonably believes that, in all the circumstances, compliance with that provision is incompatible with the special purposes.
(2) Subsection (1) relates to the provisions of -
(a) the data protection principles except the seventh data protection principle,
(d) section 12, and
(3) In considering for the purposes of subsection (1)(b) whether the belief of a data controller that publication would be in the public interest was or is a reasonable