An investigation by ITV Tyne Tees and Border has revealed that weapons such as stanley knives, hammers, lead piping and even an ice axe have been recovered from primary schools in the region.
Freedom of Information Act requests were sent to every one of our police forces.
In Dumfries and Galloway an eight-year-old boy was among those cautioned.
Alan Rutter is from the National Union of Teachers and says it highlights the pressures on teachers:
More top news
The former owner of a South Cumbria residential school has been found guilty of two charges - and acquitted of six others.
A man has been arrested over a missing laptop used by Poppi Worthington's father to watch pornography on the night the 13-month-old died.
An elderly woman in the Scottish Borders has been defrauded of over £40,000 after receiving a call which claimed to be from her bank.