In March 2009, the Information Commissioner’s Office (a public body set up to investigate the misuse of individuals’ private information) exposed the existence of a ‘blacklist’ containing the names of 3,213 individuals, largely construction workers. The “Consulting Association”, as it was known, had operated from 1993, systematically compiling a database of workers’ personal details as well as substantive entries regarding their conduct, political affiliations and trade union activities.