​When a consignment of plants and plant products is suspected to be contaminated with a harmful organism, it is checked thoroughly to determine whether the whole consignment should be prohibited. This goes in accordance with Council Directive 2000/29/EC​ Article 12(2).

 Samples are sent to the laboratory for further analysis. These are taken randomly from different areas of the consignment to represent the whole consignment, with priorities given to the plant material stated. The samples are immediately labelled and sent to the diagnostic laboratory in question. Currently the labels are hand written and no official label exists. An official label is being prepared.