Trades Union Congress (TUC) demonstration against Industrial Relations Bill Correspondence concerning a petition and demonstration in March 1971 against an Industrial Relations Bill organised by the Trades Union Congress (TUC). The file includes lists of attendees from branches in the National Union of Mineworkers (NUM) Derbyshire Area and members of the Midland Area of the National Association of Colliery Overmen, Deputies and Shotfirers (NACODS). 1971