In common with a lot of secondary schools we had a small supply of the chemical 2,4-dinitrophenylhydrazine, which has previously been used in science experiments. When it dries out it has the potential to become explosive and a national bulletin was recently issued by CLEAPSS (Consortium of Local Education Authorities for the Provision of Science Services) who advised schools to involve the police and the EOD (Explosive Ordnance Disposal) to dispose of it. CLEAPSS emphasised that the situation was safe and no-one was at risk. The police and the EOD team arrived at school this morning and carried out a controlled explosion in the middle of the field at the back of the school.
It was a routine operation that went off without a hitch and the EOD team moved on to the next school on their list.
So far, around 700 controlled explosions have been carried out across the country.