A/HRC/4/8 page 10 34. Agricultural pests are one of the biggest causes of disruption. The security of the agricultural sector is essential for sustainable development and food supply. In some developing countries, mostly island states, vulnerability of the food supply can reach 92 per cent. 35. Biosecurity is a strategic and integrated approach encompassing policy and regulation for analysis and management of risk, and the sectors of food safety and animal and plant health, including associated environmental risks. Biosecurity covers the introduction of animal and plant pests and diseases, and zoonoses, as well as the introduction and release of genetically modified organisms and their products. Biosecurity is a holistic concept of direct relevance to the sustainability of agriculture, food safety and the protection of the environment, including biodiversity. 36. The independent expert has selected agricultural pests as one of the major areas of focus, because they have struck at most developing countries. The level of technology and the lack of knowledge of agricultural pests in developing countries have allowed them to become an intolerable burden and contributed to a slowdown in poverty eradication. 37. Because of the lack of an adequate legal framework, the independent expert intends to highlight the legal framework established by WTO, in particular the Agreement on Agriculture 1995, which is intended to encourage broader cooperation between developed and developing countries. 38. Although the Agreement on Agriculture has been criticized for reducing tariff protections for small farmers, which are a key source of income for developing countries, this Agreement does specify a particular set of agricultural legal relations. 39. Since there is currently an inadequate legal framework relating to agricultural pests and despite highlighting the Agreement on Agriculture, the independent expert intends to focus on legal frameworks, in particular for agricultural pests, in his next report. Practical examples 40. The independent expert proposes that Member States give consideration to: (a) The need for international solidarity in helping developing countries to develop an analytical capacity and the necessary scientific, administrative and infrastructure capacity in agriculture; (b) Strengthening support services to agriculture by: improving research capabilities; granting access to credit; establishing marketing services; and ensuring that farmers’ needs are taken into account. C. Third-generation rights 41. The so-called generations of human rights are not intended to create a hierarchy, indicating civil and political rights as the first generation and economic, social, and cultural rights as the second generation. In fact, the independent expert prefers to speak of categories or groups of rights, in order to avoid the implication of some rights being of higher importance than others. The existence of third-generation rights has been often debated since the 1970s and