Zhang Dejiang, chairman of the Standing Committee of China's National People's Congress (NPC), inspects the safety supervision of dairy products at Inner Mongolia Yili Industrial Group Co., Ltd. in Hohhot, capital of north China's Inner Mongolia Autonomous Region, May 8, 2016. Zhang made a tour on enforcement inspection for the food safety law in Inner Mongolia from May 7 to 9. (Xinhua/Ding Lin)

HOHHOT -- Top legislator Zhang Dejiang has urged companies to obey the food safety law and told government organs to fulfill their supervisory duties, vowing to deal harshly with crimes in the field.

Zhang, chairman of the Standing Committee of the National People's Congress, made the remarks during a visit to north China's Inner Mongolia Autonomous Region between May 7 and 9, to investigate how the law has been implemented.

During the inspection, Zhang inquired after quality control at livestock raising facilities as well as farming and herding co-ops, urging leading agricultural companies and co-ops to strengthen supervision and management of food products, with special focus on feedstuffs, additives and pesticides.

Zhang urged food-makers and sellers to follow all required procedures on raw materials and finished products, while keeping clear sales records as part of a food safety liability backtracking system.

Calling on agricultural academies and food inspection centers to improve examination and quarantine procedures, Zhang stressed that the dairy companies should give priority to quality and safety in their development.

Zhang called for efforts to promote the food safety to strengthen the sense of safety and law among the public, as well as an improved and authoritative food safety supervision mechanism.

HOHHOT, May 9, 2016 (Xinhua) -- Zhang Dejiang, chairman of the Standing Committee of China's National People's Congress (NPC), learns about quality control of farm products while visiting Lianfeng Village of Bayi Township in Linhe District of Bayan Nur, north China's Inner Mongolia Autonomous Region, May 7, 2016. Zhang made a tour on enforcement inspection for the food safety law in Inner Mongolia from May 7 to 9. (Xinhua/Ding Lin)

HOHHOT, May 9, 2016 (Xinhua) -- Zhang Dejiang, chairman of the Standing Committee of China's National People's Congress (NPC), inspects Fuchuan sheep farm in Linhe District of Bayan Nur, north China's Inner Mongolia Autonomous Region, May 7, 2016. Zhang made a tour on enforcement inspection for the food safety law in Inner Mongolia from May 7 to 9. (Xinhua/Ding Lin)

HOHHOT, May 9, 2016 (Xinhua) -- Zhang Dejiang, chairman of the Standing Committee of China's National People's Congress (NPC), inspects a food market in Bayan Nur, north China's Inner Mongolia Autonomous Region, May 7, 2016. Zhang made a tour on enforcement inspection for the food safety law in Inner Mongolia from May 7 to 9. (Xinhua/Ding Lin)

HOHHOT, May 9, 2016 (Xinhua) -- Zhang Dejiang, chairman of the Standing Committee of China's National People's Congress (NPC), learns about the quality control of agricultural and livestock products while visiting the Academy of Agricultural and Animal Sciences in Bayan Nur, north China's Inner Mongolia Autonomous Region, May 7, 2016. Zhang made a tour on enforcement inspection for the food safety law in Inner Mongolia from May 7 to 9. (Xinhua/Ding Lin)