Nicola Sturgeon’s memory is a fascinating and frustrating thing.

At times, the former First Minister of Scotland’s powers of recall are quite remarkable. No detail escapes Sturgeonian examination, no nuance goes unnoticed. On other occasions, it fails her completely.

Take her appearance, in March 2021, before a committee of MSPs investigating the Scottish government’s handling of complaints of sexual assault levelled by a number of women against Alex Salmond.