The ingenious idea was to transform their portable vaporizers into 'e-joints', which they then loaded up with marijuana and hid inside marker pens so they could have a smoke on the sly during breaks.
But staff at Colombatto, a vocational school for tourism and hotel management, were well aware that drug-taking was rife in the institute thanks to the students' often brazen attitude towards consumption.
"A teacher told me he saw a boy waving a bag of drugs around in class, presenting it to his friends as as if it was a brioche,” the school's headmistress, Claudia Torta, told Il Messaggero.
“At that point, I decided that enough was enough.”
As well as police finding the e-joints during their investigation, plants, seeds and greenhouses were seized from the homes of several students.
The raids also exposed a network of juvenile drug dealers from Vaie, a small town just outside Turin in the Susa Valley, who were selling drugs both at school and at their local train station.
Ten students were charged with drug trafficking and selling drugs to minors, while two were placed under house arrest and another two are forced to report daily to their local police station.
“Drug dealing at school is a phenomenon that should be eliminated,” public prosecutor Annamaria Baldelli said.
“Outside of the family, school is our most important agent in human education.”