Given that the CPS is supposed to act in the public interest, does anyone know if they are required to defend their decision to prosecute, or not to do so, if there is significant public concern raised once the trial has ended?
I'm by no means an expert but from a quick look at their guidance manual they make a charging decision based firstly on an evidential and then on a public interest test.
Evidential = enough evidence to ensure "reasonable prospect" of conviction. Public interest = looking at a range of factors including culpability of defendant, level of harm etc. (obviously a lot more factors besides).
This tries to tread a path between giving them the leeway to prosecute "grey area" cases which don't necessarily equal "slam-dunk" guilty verdicts but equally should mean they don't prosecute cases where there's absolutely no evidence of guilt or absolutely no public interest in pursuing the prosecution.
As I understand it from some people I know in the criminal justice field, despite the detailed guidance, the charging decisions can be quite inconsistent depending on who at the CPS looks at the case, variance by region and also according to public opinion. For example there's been a lot in the press recently about rape conviction rates being low and this has apparently led to an increase in rape cases being prosecuted.
As it's a public body I imagine you'd need to perform a judicial review of the decision to prosecute which was be extremely costly, time consuming and unlikely to conclude they had been unreasonable in prosecuting unless there was enormous evidence that the decision was made for ulterior purposes or was manifestly wrong. This was also be pretty pointless after the case had concluded.
https://www.cps.gov.uk/publications/code_for_crown_prosecutors/codetest.html
Obviously off topic (and perhaps more appropriate after the verdict) but I wonder if anyone posting here has a detailed view of the decision process taken by the CPS and could give their views on the case in question.
EDIT - hadn't refreshed thread when I posted this. Great result and pleased with the verdict!