The UK is the cocaine capital of Europe, the UN has said.
The United Nations Office on Drugs and Crime said the UK was Europe's largest cocaine market — with more than one million regular users.
But its report revealed the quality of the Class A drug has declined dramatically in recent years.
A crackdown on traffickers has pushed prices up and led to dealers cutting even more.
There are estimated to be around 140,000 users in Northern Ireland and Scotland combined.