South Dorset thoughts on the Green scenario

A couple of things occured to me over the Christmas break with regard to this case. The first is this: who vetted the civil servant concerned & why didn't they pick up not only that he was a member of the conservative party (not in itself a crime for a public servant !), but also that he was an activist who had been approved as a parliamentary candidate for the party ( a different issue altogether) ?

The second is this - why did the conservatives seek to implicate an approved candidate in activity that would be damaging to his career by accepting leaks from this source ? Were the leaks actively sought or were they voluntarily given or (and the logical conclusion must be explored here) was the individual allowed to infiltrate the civil serviceprecisely for the purpose of generating leaks that could then be used to create political capital for the party of which he was both a member & an approved candidate ? If that were to have been the case the whole thing is very murky indeed.........