But it's not just London that's experiencing a problem with kids and crime.
- Recent figures revealed that the number of children being convicted or cautioned has gone up by more than a quarter across the country.
- Reported youth crime has increased by 27%.
- Crime among the under-15s has soared by a third compared to just an 11% rise in adult crime.
- Cheshire has seen under-18 crime rise 95% since 2002, and the same statistic in Sussex has risen by 90%.
But what do all these figures mean, especially when a lot of crime goes unreported? Are we only highlighting a small minority of young people, or is this a snapshot of a bigger picture that's actually much worse than we know?
We've spoken to the experts about what the reasons could be and what the possible solutions are.