Customs officials at Amsterdams Schipol airport have issued warnings over chocolate bars spiked with hallucinogenic substances after a homeless person suffered nausea and hallucinations after eating one. Several of the spiked chocolate bars in black, brown and gold wrappers labelled Noir de Noir 72 percent cacao have been found at the airport. Airport police believe that travellers carrying the adulterated chocolate bars may have dumped them for fear of being detected during boarding controls. Lab tests show that the bars contain psilocine, one of the substances found in hallucinogenic mushrooms.