During Harold Wilson's first premiership (1964-70) the Minister of Labour, Barbara Castle, issued a white paper that proposed curbing the right to strike in an attempt to deal with 'wildcat strikes' (i.e. those led suddenly by local union figures). What was Castle's white paper called?

The world of employment and industrial relations was a volatile one between 1951 and 1979. Britain was heavily unionised during the period, and trade unions accordingly wielded considerable power. By the 1960s, however, relations between unions and governments deteriorated - even between the unions and their traditional allies, the Labour party. When a new Tory administration emerged in 1979, this tension was likely to come to a head.