 Although hunting is illegal in the Serengeti, the Tanzanian authorities recognize that the Hadza are a special case and do not enforce the regulations with them, just as the Hadza are the only people in Tanzania not taxed locally or by the national government.The Hadza are organized into bands, called 'camps' in the literature, of typically 20–30 people, though camps of over a hundred may form during berry season.There is no tribal or other governing hierarchy, and almost all decisions are made by reaching an agreement through discussion.