In an additional statement, Dan Morrison, a partner at Grosvenor Law, said: "Mr Farage is concerned about possible criminal issues arising out of the bank's conduct.
NatWest came under pressure from the then-Conservative government in 2023 after Mr Farage produced evidence he suggested showed a personal, rather than commercial, decision was behind his debanking.
He told Sky News that Grosvenor Law, acting for him in separate civil proceedings against the bank, are instructing Mr Daw KC to explore a private criminal prosecution.
NatWest’s chairman Sir Howard Davies said: “This report sets out a number of serious failings in the treatment of Mr Farage.
The debanking scandal resulted in Dame Alison Rose’s departure as chief executive, with the bank acknowledging failings on their part, largely tied to the treatment of confidential information.
