CALLS for a public inquiry into construction industry blacklisting reached fever pitch yesterday after the Met finally admitted it had passed information to key blacklisting organisations.

After years of denials, Deputy Assistant Commissioner Richard Martin finally confessed to the collusion in a response to a complaint to the Independent Police Complaints Commission by the Blacklist Support Group.

The 40-year construction blacklist, organised by transnational corporations like Robert McAlpine and Balfour Beatty through the Economic League and The Consulting Association, kept secret files on more than 3,200 trade unionists, often just for raising on-site safety concerns.