An honest politician is one who stays bought.

However this balloon may be going to go up in that it seems that litigation about the propriety of the exercise of the jurisdiction to decide whether it was in the public interest to prosecute is likely. Now that will be really really interesting, and no doubt the extent of public interest immunity from discovery (disclosure) will figure large.

I predict that the issue will be found inapt for judicial review and therefore non-justiciable, applying the criteria from the GCHQ case.