Sniffer dogs are to start doing random drug searches at a school in the West Midlands.
Staff at the school hope this will send out a clear message to pupils that drugs will not be tolerated.
The dogs and their handlers will make regular surprise visits to the school during assemblies.
Pupils at the school are pleased about the scheme because it warns them of the dangers of drugs.
One pupil said: "I think it is a good idea as it will stop you when you are older taking drugs."
"One dog was very excited by the contents of one teacher's trousers but they found he only had a marker pen in his pocket!" she said.
The headmistress of the school has decided to run the new scheme as a response to the government's wish to improve drug education in schools.