The Altegrity consultant says he has recently investigated the Mexican operations of U.S. companies that have been infiltrated by organized crime, finding cases of extortion and one payroll scheme.

FORBES: Mexico

Speaking after the inquest, Det Insp Jon Fanner, of Surrey and Sussex Major Crime Team, said Mr Pisano had a background of extortion.

BBC: Michael Polding

Under his leadership, Cosa Nostra seems to have withdrawn from its foreign activities to concentrate on crime in Sicily, notably extortion and the creaming-off of profits from public contracts.

ECONOMIST: The dramatic capture of the Mafia's top man