Sniffer dogs are to visit a number of schools in Cornwall to help tackle recreational drugs, it has been revealed.
Headteachers in St Austell say the use of recreational illegal substances "is becoming more prevalent in our community".
They wrote a letter to parents earlier in the week explaining the decision to invite Devon and Cornwall Police's drug team into the school: "We want to send a clear message to students about the dangers of drugs and that they must never be brought in to school."
The drug team will visit Carrick APA, Falmouth School, Penair School, Penryn College, Richard Lander School and The Roseland School in the coming weeks.
Students identified with drugs will be taken to one side by officers, searched and their parents notified. They will then be searched again at random in the following months.
"It is our view that we must do all that we can to ensure that schools are havens of safety and security, where young people of all backgrounds can come together to learn in an environment which supports high aspirations and life-long success," said the headteachers.
Parents have been encouraged to get in touch with the schools if they have any concerns about the safeguarding measures.