ContactPoint was a response to Lord Laming's report following the death of Victoria Climbie, who was abused by her great aunt and the aunt's boyfriend.
But the system, costing £224m, was delayed twice amid data security fears.
The government says it will enable more co-ordinated services for children and ensure none slips through the net.
But in 2007, a report into the project by auditors Deloitte and Touche said it could never be totally secure.
Last summer ministers delayed the database, admitting there were some “issues” identified in testing.
It says 390,000 people will have access to the database, but will have gone through stringent security training.
And it is a certainty that not one of those 390,000 people will be able to be blackmailed or bribed in order to give up a child's details.
I would suggest that giving over a third of a million people 'stringent' security training will be rather harder to do than the government thinks it will be.
Much like getting children used to handing over their fingerprints to borrow library books it seems that we are educating tomorrows generation to be content that the government has all their details.