A 56-year-old man from Naarden has been sentenced to 4.5 years in prison by the Central Netherlands District Court. In a shed behind his house in Muiderberg, police found 1928 kilograms of the party drug ketamine early this year. He was storing it for an acquaintance of a friend. In addition to ketamine, other types of drugs were found in the man's home, including nearly 5 kilograms of 2C-B.