Police are targeting kids who intend to skip school to protest against US President George Bush's visit.
Metropolitan Police officers will be told on Wednesday to approach school kids and take them to school if they don't have a good reason to be out.
Protest marches are expected in London, and teachers have said any kids that miss school to attend will be punished.
14,000 British police will be involved in keeping Mr Bush safe, and he is bringing hundreds of guards with him.