Health Minister Lesley Griffiths says she does not consider mephedrone use 'a huge problem' in Wales.
But she added that educating people about it now will raise awareness of the dangers and help prevent people trying the substance in future.
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A dry night with just a few showers at times, but temperatures will fall with some areas seeing a frost by the early hours.
Carl Sargeant’s family have said his funeral will be a celebration of his life. It will take place on Friday 1st December.
An independent adviser will investigate whether the First Minister breached the ministerial code over allegations of bullying.