It has been more than a year since consignments of the thickening agent E412 (guar gum) originating from India contaminated by pentachlorophenol and dioxins appeared on the European market. In connection with this incident, the European Commission tightened up the import of guar gum from India – each batch must be accompanied by an analytical report from an accredited laboratory proving that the product does not pose a threat to human health. The report is then reviewed and endorsed by a representative of the competent enforcement authority, which is, in the Czech Republic, the Czech Agricultural and Food Inspection (CAFIA).