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Police make a mockery of data protection

Court judgment 'forgets privacy rights of millions'

Comment While the police are very keen to retain as much data on the average citizen as they can "just in case" it becomes useful, they are markedly less happy when the data being collected relates to them.

That is the conclusion from two otherwise unrelated stories hitting the headlines this week, as a landmark ruling by the Court of Appeal may set new and dangerous precedents in the area of data protection and civil liberties.

First up is the Court of Appeal ruling. Back in July 2008 the Information Tribunal, which rules on more complex Data Protection issues, announced to the general approval of various civil liberties groups that the Police should delete records of minor criminal convictions that were "spent" in terms of the Rehabilitation of Offenders Act 1974 (pdf).

The Chief Constables of five police forces – Humberside, Staffordshire, Northumberland, West Midlands and Greater Manchester – objected. Yesterday, three judges sitting in the Court of Appeal ruled that their objections had merit, and that the police could continue to hold on to conviction data for as long as they wished: in fact, for up to 100 years.

At the heart of the ruling are several serious weakenings of what the public may have otherwise considered to be rights conferred under Data Protection Law.

The court observed that in the past, the Association of Chief Police Officers (ACPO) had put together a code of practice that had been readily accepted by the Information Commissioner. This involved the removal of large numbers of records after they were deemed to be no longer relevant.

However, following the Bichard Review, which looked into events surrounding the Soham murders, the police and the Information Commissioner took different positions on data retention. The police argued that they had statutory duties to retain data in order to pass it on to several external bodies, such as the ISA, CRB and CPS – and that instead of "weeding out" old data, they would now "step down" old data (ie make it available only to police officers or on request).

There was some argument before the Court of Appeal as to whether this "purpose" was outside what might be deemed to be police "core purposes". Lord Justice Waller accepted that "the evidence was very much... that the information might be of value in certain circumstances and of value when taken together with other information".

However, he was also clear on two further points. First, that the Information Commissionershould not focus only on "core purposes" (ie police operational matters), but that other purposes, as outlined above, would also be relevant.

In an extraordinary passage (s31), which appears to rip the guts out of the Data Protection Act, Lord Justice Waller stated "the data controller must specify the purpose for which data is retained. There is no statutory constraint on any individual or company as to the purposes for which he or it is entitled to retain data. I would accept that the purposes must be lawful in order to comply with DPP 1 but, that apart, a data controller can process data for any purpose."

In respect of police judgement on retention of data for operational purposes, he added (s43): "If the police say rationally and reasonably that convictions, however old or minor, have a value in the work they do that should, in effect, be the end of the matter."

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