The AMIEU was organised between 1906 and 1920, particularly in Queensland, by the revolutionary union the Industrial Workers of the World. The IWW, or Wobblies, encouraged Meatworkers to set up boards of control on job sites. These boards functioned, effectively, as works councils in the Meat industry. The boards were particularly strong in North Queensland where, under the direction of state organiser Walter Russell Crampton, they controlled production levels through direct action. Meat industry sheds in North Queensland were so effectively organised that the sheds became closed shops. This was known in the day as Preference of Employment. (1911 AMIEU Preference of Employment contract, AMEIU history, page 2)