There have been a lot of developments in case law surrounding fundamental dishonesty since the case of Fairclough Homes Limited (Appellant) v Summers (Respondent) [2012] UKSC 26 when the Court held that it does have the power under Court rules to strike out a Claimant’s case in its entirety.
https://www.trethowans.com/news/new-statement-of-truth-underlines-commitment-to-tackle-fraud