Some details about the massive Children Index centralised database of 12 million children and their parents and guardians has emerged via a Parliamentary Written Answer Commons Hansard 6 July 2006 : Column 1384W:
Note that there is no mention of the Audit Trail log files which, just as with the controversial centralised biometric National Identity Register, inevitably must exist in a system so large.
This Audit Trail will indirectly reveal and betray sensitive personal data e.g. if and when a child abuse specialist or a drug abuse advisor etc. has been examining the child's record
Mrs. Spelman: To ask the Secretary of State for Education and Skills if he will list the (a) personal attributes and (b) fields which the electronic Children’s Database will have the capability to hold. 
Beverley Hughes: The information sharing index will contain only limited and basic information about children in England and contact details for other services working with the child or young person. It will enable practitioners to identify and contact one another easily and quickly, so that they can share relevant information about children who need services or about whose welfare they are concerned.
It will not record information on personal attributes such as children’s diet, church attendance or school attainment. The Children’s Act 2004 specifically prohibits the inclusion of any case information on the index. There will be no subjective opinions or observations about a child or parent, no details of assessments such as the Common Assessment Framework and no automatic triggers for action or investigation.
However the unique child identification number willl be used as a computerised cross reference for all the existing databases just mentioned.
Since this database will contain much of the same information as the National Identity register, it too must be protected as part of the Critical National Infrastructure.
Note, however, that the budget for setting up this Children Index is "only" £224 million over 3 years, and £41 million a year to run it thereafter. This is orders of magnitude less than that budgeted for in the National Identity Register, which is only 4 times larger. See "Children Act 2004 centralised databases to cost £224 million to set up ?"
Information fields on the index will hold for each child or young person:
basic identifying information: name, address, gender, date of birth, and a unique identifying number based on the existing child reference number/national insurance number;
basic identifying information about the child’s parent or carer;
What are the plans and costs associated with the National Identity Register and this scheme ?Contact details for services involved with the child: as a minimum school and GP practice, and other services where appropriate and if consent from the child or family has left obtained in respect of a sensitive service.
the facility for practitioners to indicate to others that they have information to share, have taken action, or have undertaken a Common Assessment Framework, in relation to a child; and
other information included solely for the purposes of identifying and managing the quality of data in the index, for example the date of the last update to the record.
We will consult over the autumn on draft regulations that will bring the index into operation. The draft regulations will be laid before both Houses for debate under affirmative resolution procedures. Subject to the will of Parliament, the index is expected to be available in all local areas in England by the end of 2008.
Where are the criminal offences which will prevent civil servants and IT consultants etc. from carrying large portions or the entire Children Index database on their laptop computers, unprotected by Government Approved Encryption such as Kilgetty, some of which will inevitably be lost or stolen ? Surely the recent "identity theft" scandals involvingl aptop computers and USB memory sticks in the USA have been learned from ?