Nursery school staff and registered childminders must report toddlers at risk of becoming terrorists, under counter-terrorism measures proposed by the Government.

The directive is contained in a 39-page consultation document issued by the Home Office in a bid to bolster its Prevent anti-terrorism plan.

Critics said the idea was "unworkable" and "heavy-handed", and accused the Government of treating teachers and carers as "spies".

The document accompanies the Counter-Terrorism and Security Bill, currently before parliament. It identifies nurseries and early years childcare providers, along with schools and universities, as having a duty "to prevent people being drawn into terrorism".