The move, revealed by the Evening Standard, was condemned by Louise Christian, the solicitor acting for families of five Potters Bar victims. She said: 'A lot of my clients are going to be absolutely devastated by this because Jarvis are clinging to their belief that the Potters Bar crash was not caused by bad maintenance. My clients feel that if there had been a full investigation into the Hatfield crash then the Potters Bar disaster would never have happened. But the Government is now so deeply involved with these two companies that it is utterly dependent on them to deliver key elements of the public-private partnerships. As a result, it is not willing to hold them to account.'