So if I understand you correctly, the decision that you are referring to is the decision by the Permanent Secretary to make public the fact that 2 complaints had been made against Salmond and to make public the fact that an investigation into the complaints were under way?
No - as far as I am aware the allegations were raised in January and Salmond was informed of them in March (presumably there was an early pre-investigation to assess the initial claim (Jan - March). An investigation took place from March onward under the defined procedure, which reported in August (22nd) with the report details provided to Salmond, Nicola Sturgeon and the assurers. The outcome of that investigation being that there was a case to answer and that the details were passed over to the police.
As far as I'm aware the Judicial Review is on those aspects.
The issue of the allegations being made public is separate - Salmond planned to apply for a separate court order (an interdict) to prevent the details being made public, but I gather this was dropped as it was too late and the allegations had been made public.