To ask the Secretary of State for Work and Pensions what databases are controlled by his Department and its agencies; and what percentage of the data in each database he estimates is inaccurate or out of date. (124023)

It is not possible to provide this information without incurring disproportionate costs.

The Department has several hundred IT systems, each of which has a database of some form. The accuracy and currency of the data held within them will vary depending on the purpose of the system.

Systems which are used in the identification and control of customer records should be up to date at the point that a citizen last contacted us to inform us of their circumstance (or change of circumstance). The information is based on what is provided by the citizen and verified where appropriate.

To ask the Secretary of State for Work and Pensions how often his Department's databases are updated with the revised details of individuals who have moved house. (130597)

The information is not available in the format requested. The Department for Work and Pensions has updated its records around 18.5 million times as a result of people changing address.