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Automatic numberplate recognition: is it legal?

Guest by Keith Mathieson

A report in the Guardian last week reminds readers of the strong likelihood that local police forces have tracked their movements with the use of automatic numberplate recognition (ANPR).  According to the article, around 14.5 million numberplate reads (yes, 14.5 million!) are generated every day in the United Kingdom.  They are then stored on servers adjoining the police national computer in Hendon, north London.  Each record of a car’s movements will be stored for two years – or five years if connected to a crime. The movements are detected by a combination of 5,000 unmarked roadside cameras (not to be confused with the marked yellow boxes containing speed cameras) and mobile cameras inside patrol vehicles.

ANPR helps police forces to tackle crime by enabling it, among other things, to track down uninsured and disqualified drivers and those whose cars may have been used for crime.  But the system has the potential to cause unwarranted infringements of personal privacy where, for example, the movements of innocent car owners are retained for no good reason or, through laxity or error, car owners are wrongly ‘hotlisted’ as deserving police attention.

The Guardian article describes the ANPR system in operation in Royston, Hertfordshire, a relatively crime-free spot where ANPR has nonetheless been installed on every road in and out of the town.  The article notes that the Royston scheme has been the subject of complaints to the Information Commissioner’s Office by the campaign groups NoCCTV, Privacy International and Big Brother Watch.

In its 2005-2006 report the Chief Surveillance Commissioner expressed concerns that existing legislation did not adequately cater for ANPR, which, he suggested, might in some cases amount to covert surveillance under the Regulation of Investigatory Powers Act 2000.  The Government is intending to regulate CCTV and ANPR as part of the reforms to be introduced by the Protection of Freedoms Bill.  A previous post found here described the provisions of that bill.

Keith Mathieson is a partner at Reynolds Porter Chamberlain LLP

Posted on by Big Brother Watch Posted in ANPR

One Response to Automatic numberplate recognition: is it legal?

  1. anon

    This anpr thing is quite scary…I was recently stopped on the M4 nr Basingstoke…the officer asked me were i had been…I informed him that i was on a fishing break …and that i had recently been in Oxford. This officer then typed my registration number into his dashboard pc and a map came which had a route highlighted…he then proceeded to point out that i had been to oxford, parts of bristol, bath and somerset within the last 24 hrs! He then called me a liar!…I was enraged and told him i’m no liar and i do not have to tell him exactly where i had been…he was quite angry and asked for my details searched my vehicle then sent me on my way….I have never been in trouble with the police before!…why should i be treated like this??

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