Actually, this isn't an instance of someone being "caught out." The woman apparently contacted police very promptly to retract her story. It looks like she sobered up and rediscovered her conscience and was genuinely very sorry. Had she persisted in her lies, it's unlikely she would have been found out.
I also think that a conviction for making a false report and wasting police time doesn't reflect the gravity of her act. It takes account of the nuisance to the police and the waste of public money in the courts. They are victims, as it were. However, such a charge doesn't encompass the anguish inflicted on the main victim, who is of course the taxi driver. I'd much prefer to have seen a charge of perverting the course of justice, which places the principal victim at the centre of the case, and which carries heavier penalties in the sentencing guidelines.
Here's a more detailed report
www.edinburghnews.scotsman.com/news/crim...ensual-sex-1-3744112