Two lethal "legal highs" - including a substance linked to 37 UK deaths - have been banned as class A drugs.
Stimulant Serotoni - known technically as 4,4'-DMAR - and another substance not currently found in the UK called MT-45 have both been controlled under the Misuse of Drugs Act 1971, crime prevention minister Lynne Featherstone said.
Serotoni, which has been linked to 37 deaths in the UK, mostly in Northern Ireland, is usually bought in tablet or powder form, while deaths have been connected to MT-45 in Europe and the US.
Possession of a Class A drug can be punished by up to seven years in prison and an unlimited fine, while supply of a Class A drug can lead to life in prison and an unlimited fine.
The move comes after the Advisory Council on Misuse of Drugs (ACMD) recommended that both substances should be banned.
Source: Belfast Telegraph, 27/11/14