A BBC investigation has revealed that even very young children are taking knives into UK schools. Police recorded cases involving a four-year-old in Kent and a six-year-old in the West Midlands carrying a flick knife and threatening another pupil. In 2024, there were 1,304 knife-related incidents in schools and sixth-form colleges across England and Wales - 10% involving primary-age children. Though total offences have slightly declined, serious attacks have increased. Some schools, especially in high-risk areas such as the West Midlands, are now installing permanent 'knife arches' and handheld detectors. The mother of 15-year-old Sheffield pupil Harvey Willgoose, who was fatally stabbed at school earlier this year, is urging the government to fund metal detectors nationwide, saying, 'Kids are going to school frightened’. Police data shows most offenders are teenage boys, often carrying blades for self-protection. Educators and youth mentors warn that fear, broken families, and lack of community support are fuelling this crisis and are calling for deeper emotional education and stronger pastoral care.