Drug use

More charges in drug-related deaths investigation

Teens used younger children to deal drugs

Arrests as third person dies in drugs supply probe

Two city deaths linked to drugs, police say

Lorry driver charged after 73kg of cannabis found

Canada's Conservative leader ejected from parliament

University tests Bristol heroin to find link with Devon batch

Pair jailed over drugs with £100k street value

Fifth person held over 'unusual batch' of heroin

Second man dies after 'bad batch' heroin alert

Canada province seeks to ban public hard drug use

Man jailed over toilet prison drug smuggling

Drug dealers offer BBC team deadly opioids

Ketamine addict: 'I can't walk 50m without weeing'

The Inquiry. Are synthetic opioids a global problem? Audio, 23 minutesThe Inquiry

Addicts do anything to cover it up - bereaved dad

Photography project 'breaks the stigma' on trauma

What is nitrous oxide and why is it being banned?

Sierra Leone declares emergency over drug kush

How mum got her life back from grip of addiction

Seizures linked to 'dangerous batch' of ketamine

Canada's drug experiment hits strong opposition