Mephedrone, a synthetic stimulant, has been reclassified from a Class C to a class B category of drug in Jersey.
The substance has similar attributes to speed and was devised as a plant food.
The drug has been illegal in Jersey since December but was reclassified following a number of deaths attributed to the drug in the UK.
The order to amend the Misuse of Drugs act was made by the Health Minister, Deputy Anne Pryke, last week to come into force on 2 June.
Tuesday, 1 June 2010