In the first of our landmark new series looking at drug use across Britain, we explore a legal high epidemic in Wolverhampton. Following 27-year-old Liam over three months in his battle to quit the synthetic cannabis black mamba. Legal highs have now been outlawed by the British government. The ban comes as a response to the increasing use of synthetic drugs across the streets of Britain. Written by Giedrius G

In the second episode of Drugs Map of Britain, we meet a group of men who use violence to deal with, what they say, is the growing heroin problem in their area. Every week, they collect discarded needles and believe those responsible must be punished. But how do they justify their actions and why do heroin addicts, in particular, face so much prejudice and stigma? Written by Giedrius G

In this episode of Drugs Map of Britain, we investigate Valium addiction in Scotland, where three-quarters of drug-related deaths involve this type of drug. Millions of the pills - both real and counterfeit - are available to buy on the streets for as little as 20p each. We meet those buying them and witness the devastating effects of addiction for someone like Levi, who's been taking Valium since he was 13. Written by Giedrius G

In the fourth episode of Drugs Map of Britain, we go on a road trip around the country to meet seriously ill people who believe cannabis is curing them.

A landmark series exploring the drugs of choice in different parts of the UK. From Mamba in Wolverhampton to Heroin in Manchester, this series lifts the lid on the narcotic landscape of Britain today.

A landmark series exploring the drugs of choice in different parts of the UK. From Mamba in Wolverhampton to Heroin in Manchester, this series lifts the lid on the narcotic landscape of Britain today.

A landmark series exploring the drugs of choice in different parts of the UK. From Mamba in Wolverhampton to Heroin in Manchester, this series lifts the lid on the narcotic landscape of Britain today.

A landmark series exploring the drugs of choice in different parts of the UK. From Mamba in Wolverhampton to Heroin in Manchester, this series lifts the lid on the narcotic landscape of Britain today.