The joint warning has been issued after police officers and drugs counsellors learned that a dangerous drug called “CHMICA” or “CHMINACA” that is estimated as 100 times stronger than cannabis has arrived in Jersey.

No one has died from the drug yet, but it has been linked to deaths in Sweden and the head of the Alcohol and Drugs Service Michael Gaffoor has described it as potentially lethal. Side effects include convulsions, heart attacks and psychosis.

The drug has been made illegal to import and export in Jersey.

Mr Gaffoor said: “This is one of the most dangerous synthetic cannabinoids that we have seen in Jersey so far because of the unpredictable and potentially fatal effects it can have.”

He has issued the following advice for anyone using a street drug, saying:

  • They should avoid using alone.
  • Start with a low dose – wait and do not double dose.
  • Do not mix with other substances including alcohol as this increases the risk of seizures and death.
  • If you begin to feel unwell seek medical help immediately.