A Material relating to policy strategy in conducting their future investigations. As to that, the judge said that the real concern of the police was that they wished to put the document to several individuals who might be suspects. They considered that there was a risk that if information about the document was published, that would give potential interviewees the opportunity to frustrate the investigation.
B Material of a factual nature: The police regarded the document in question as a key document in the investigation into the perversion of the course of justice, whose deployment was a matter of real interest and concern and the police were for that reason concerned about it receiving advanced publicity in the media. The document was not an email, it ran to several pages and contained far more information. There was a real question mark as to whether Mr Powell, the addressee, ever received it and the investigating officers were very interested to discover whether he did so or not.
C Material related to Mr John McTernan, director of political operations at Downing Street.
No doubt John will take precious time out from overseeing the decimation of the Labour party in Scotland to post again in the comments telling us how he is in the clear and Guido gets it all wrong. We shall see…