Confidentiality of the personal data in the LS is of paramount importance. Not only must the requirements of the Census Act, the Population Statistics Act and the Data Protection Act be observed but public confidence must also be maintained. There are a number of safeguards.
Firstly, the index of names of LS members is held under high security and is not linked with the computerised records, which do not include names and addresses. Secondly, the dates of birth used as the basis for selecting the sample have never been publicly announced. Finally, and of most relevance to those using the LS, analyses of the data may only be released as tabulations or statistical summaries; no individual records are released.