Excluded schoolchildren are at serious risk of becoming involved in knife crime, the children's charity Barnardo's has warned. Cause or effect? Barnardo's have been careful not to dwell too much on this matter but obviously lean more towards the implication that excluding a pupil puts them more at risk of becoming involved in knife crime. However, perhaps being a candidate for exclusion is just an early warning that a pupil is more likely to be involved in knife crime in later life. Thoughts?