Should the government ban all 'legal highs'?
It also found mephedrone is still widely available online despite the ban in April.
The governments chief drugs advisor professor Les Iverson said Britain was 'floundering' in its attempts to control the online mephedrone market.
Prof Iverson is calling for a blanket ban for all similar legal highs until they have been tested but critics say that could result in more dangerous substances flooding the market.
Do you think all new 'legal highs' should be outlawed? Would that deter people from using them?
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