I think I still have to go for a) incompetent, not b) mass conspiracy.
I do agree - I just think that when it came down to it, they got so carried away with the magnitude of securing a scalp for the #metoo in Salmond that they lost all reason. Probably people who are normally quite professional & not at all utterly incompetent just lost their shit at the idea that Salmond could be the 1st big name to scalp.
I think that the 2 women who originally complained had genuine reasons to do so. I think under normal circumstances, they would have said they don't have either a policy to address them, or directed them to advocacy/support to determine if they could/should report to the police & that would have been absolutely the correct way to deal with this. Even kicking off a consultation on how to tackle historic complaints and get it right.
But instead, we know that they just f*cked up at almost every stage. So yes, I think total incompetence does apply.