Bennett's been doing Research and Joining The Dots:
5. Trafigura's reputation managers were Carter-Ruck. One of Carter-Ruck's solicitor partners is Isobel Martorell, formerly Hudson. Her husband hails from Barcelona. There is an obvious connection with the dodgy firm of detectives used by the McCanns, Metodo 3, who are also based in Barcelona. Obvious connections for Halligen in all of that