Nearly one in five teachers are aware of students using cannabis on school premises, a survey suggests. The NASUWT teaching union, which surveyed nearly 4,000 members, warns that drug and alcohol use among pupils is contributing to disruptive behaviour.

Of those surveyed, 13% said they were aware of students using nicotine pouches—also known as “snus”—in school. Nine percent reported students using spice, while 7% said students were drinking alcohol.

A much higher proportion of teachers reported awareness of substance use outside of school: 57% for cannabis, 55% for alcohol, 30% for nicotine or snus, 25% for nitrous oxide, and 16% for other drugs.