The government has postponed legislation to introduce its £3bn biometric ID card scheme in the run up to the election.
Home secretary Charles Clarke said ID cards would appear in Labour's manifesto and would be an early priority if Labour is re-elected.
The proposals have been attacked by technology experts, who argue that the scheme is poorly thought out and will do little to prevent identity theft, terrorism and illegal immigration.
Qinetiq, the government's former Defence Research Agency, has criticised the proposals to verify ID cards against a central population register as unnecessarily complex and expensive.
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