CONTROVERSIAL plans to introduce a national identity card will be given a "thorough examination", John Denham pledged today.

The Southampton Itchen MP will lead a group of politicians scrutinising David Blunkett's draft Bill.

The Home Secretary claims the cards are essential to prevent Britain becoming a "soft touch" for terrorists.

However, ministers also believe the cards will help crack down on ID fraud, human-trafficking and illegal working, as well as stopping people exploiting health and welfare services.

Mr Denham, chairman of the powerful Home Affairs Select Committee, which has taken evidence on a wide range of issues relating to identity cards, will now examine the Bill line by line.

Mr Denham, a former Home Office minister, said: "In the course of our current inquiry we have taken both written and oral evidence on the broad issues and controversies that surround ID cards.

"However, many questions remain unanswered about the practical aspects and implications of identity cards.

"Now we have an opportunity to scrutinise specific proposals based on what the government has published.

"It is vital that careful consideration is given to this important issue and that draft legislation is thoroughly examined. Informed debate is crucial."

The committee will question Mr Blunkett and will today take evidence from Education Secretary Charles Clarke, Health Minister John Hutton and benefits minister Chris Pond. The introduction of the cards will cost up to £3.1 billion.