HL Deb 17 March 2000 vol 610 c233WA
The Earl of Northesk

asked Her Majesty's Government:

Whether they consider that the privacy of individual citizens is adequately protected from the practice of "triangulation" of data. [HL1480]

The Parliamentary Under-Secretary of State, Home Office (Lord Bassam of Brighton)

Where triangulation involves the processing of personal data, the organisations concerned must meet the requirements of the Data Protection Act 1998. In particular, they must comply with the data protection principles. Among other things, these require appropriate technical and organisational measures to be taken against unauthorised or unlawful processing of personal data. The Act also makes it an offence knowingly or recklessly to obtain or disclose personal data without the consent of the data controller.