The applitant's argument can be summarised this way.
Such letters to the department are exempt only if they can be
reasonably described as a confidential source of information.
Here it said the letter did not supply 'information' as such. To
the contrary it contained only factual allegations found to be
false, coupled with a malicious attack on the applicant who was in
effect labelled as an inveterate liar. It contained not
'information' but 'disinformation', which is defined in the
Concise Oxford Dictionary, 7th edition as deliberately false
information. That publication defines information inter alia as
an "informing, telling, thing told, knowledge, items of knowledge,
news...". But it seems to me that deliberately false information,
albeit malicious, coming into the hands of a department, which
does not at the time of receipt know whether it is true or false
1s nevertheless at that time fairly labelled "information". The
word misinformation goes merely to the true quality of the
information. So when the letter comes into the hands of the
department it must I think be treated as 'information', a word of
common albeit wide meaning constantly used in the statute but
which, wisely enough, the draftsman did not attempt to define.
But that is not the end of the applicant's argument. Counsel
submitted that it is at the time a client seeks disclosure of the
document that the matter must be examined, a time it must be
assumed in this case, when the department is satisfied the
information was inaccurate and false. At that time when the
document has lost all credibility can its author be aptly regarded