As part of the visit to the Guangdong Entry-Exit Inspection and Quarantine Bureau (GDCIQ), the Permanent Secretary for Health, Welfare and Food, Mrs Carrie Yau, tours the Food Testing Laboratory of the GDCIQ Technology Centre to gain a more in-depth understanding of the inspection and quarantine work of the Guangdong authorities, including pesticide residue, heavy metal, additive chemical and microbiological tests.   Close