A[ new report in the British Medical Journal claims illegal drugs are now purer and cheaper than they have been at any time in the last two decades.
Last year, Llanelli was highlighted as a hotspot for the use of the so-called party drug mephedrone, also known as meow meow.
We hear the story of one young man from Llanelli who spent 3 years addicted to meow meow. We'll also be hearing Katie Davies' story of how she lost her cousin Hannah to heroin four years ago - she was only 17.
The police say they’re doing everything they can to tackle the mephedrone problem but we go on to the streets of the town to see just how easy it is to get your hands on the drug.