A Dutch experiment involving the licenced production and sale of cannabis which is due to start this autumn is likely to be delayed, broadcaster NOS reported. Arnhem mayor Ahmed Marcouch has told the city council that there are still many uncertainties that need to be ironed out and although a justice ministry spokesman did not use the word ‘delay’ he did point to the tough conditions surrounding the experiment. In total 10 cities, but not the big four, are taking part in the experiment which aims to remove the grey area between licenced cannabis cafes, or coffee shops, and the illegal drugs trade. Independent research will assess the impact of having a closed chain from plantation to retail on crime and public order. (See also: Dutch legal cannabis cultivation trial stalled)