 The incident resulted in Sabini being known as a protector for both Italians and women in London.As leader of the Sabinis and "king of the racecourse gangs", he dominated the London underworld and racecourses throughout the south of England for much of the early twentieth century.Although his Clerkenwell-based organisation gained the core of its income from racecourse protection rackets operated against bookmakers, it was also involved in a range of criminal activities including extortion, theft, as well as operating several nightclubs.