Link :
http://uk.news.yahoo.com/041029/323/f5lqk.html
STOCKHOLM (AFP) - Thirteen employees of a botanical garden in Stockholm ended up in the hospital showing symptoms of drug poisoning after a departing intern served them cake as a goodbye gesture, police said.
A 27-year-old intern at the Bergianska traedgaard in Stockholm had baked a cake for his colleagues on his last day of work.
After eating the cake with their morning coffee, "five people became ill. They showed signs of having been drugged. Later on, more people got sick," Stockholm police spokesman Bjoern Pihlblad told AFP.
In all 13 people, including a 15-year-old boy, were sent to the hospital after reportedly experiencing dizziness, seeing hallucinations and having trouble breathing.
"We are not sure what kind of drug was used," Pihlblad said, adding that police had not yet located the intern and that they had conducted a search of his home for narcotic substances.
According to Swedish media reports, cannabis and mushrooms, both hallucinogenic drugs, had been found at the man's home.