Legal highs
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Legal highs 'tried by 12-year-olds' say drug workers

31 January 2014 Last updated at 19:07 GMT

Children as young as 12 are trying chemicals which mimic the effects of cannabis and ecstasy.

That is according to the Gwent Drug Intervention Programme which says so-called legal highs are a growing problem.

Sold in brightly coloured packaging, most are not covered by drugs laws because they are chemically different to their illegal counterparts.

A Welsh government scheme is trying to address the problem by analysing substances for free and publishing the side effects on the internet.

Paul Heaney reports.

Legal highs 'tried by 12 year olds'