Disclosure Details

Speed Camera - 533/12

Dated: 07 Jun 2011

Date of request:   25/06/2012

Date of response:   10/07/2012

Provision of information held by Northumbria Police made under the Freedom of Information Act 2000 (the 'Act')(FOIA)

Thank you for your email dated 25 June 2012 in which you made a request for access to certain information which may be held by Northumbria Police.

As you may be aware the purpose of the Act is to allow a general right of access to information held by a Public Authority (including the Police), subject to certain limitations and exemptions.

You asked: 

In question 3 of FOI 456/12 you said the secondary white lines are approximately 5 feet withinin the tolerance for accuracy. What is the tolerance allowed and has it ever been calibrated.

In response:

We have now had the opportunity to fully consider your request and I provide a response for your attention.

Following receipt of your request, searches were conducted with the Operations Department of Northumbria Police.  I can confirm that the information you have requested is held by Northumbria Police.

I have decided to disclose the located information to you as follows.

The purpose of Home Office type approval is that the radar speed detection device is accurate and calibrated.  There is no specification laid down in the type approval of this device.  The speedmeter handbook gives a +/- 10% margin.  This is not a measurement of speed only a guide and the distances and time intervals of the second photograph and road markings vary.  This site is within this tolerance.

Please note that further requests on this subject area may be declared vexatious under Section 14 of the Freedom of Information Act 2000 and we provide an explanation to this exemption.

Section 14 (2) Vexatious Requests - Where a public authority has previously complied with a request for information which was made by any person, it is not obliged to comply with a subsequent identical or substantially similar request from that person unless a reasonable interval has elapsed between compliance with the previous request and the making of the current request.  It is not in the spirit of the Act to use it as a method to repetitively interrogate police systems for updated data.

However, the ‘reasonable interval’ is not defined but it is suggested that 60 working days may be a useful benchmark.



You may be interested to know that Northumbria Police routinely publish information that has been disclosed by Northumbria Police in response to requests made under the Freedom of Information Act 2000 via the Disclosure Log.  The aim of the Disclosure Log is to promote openness and transparency by voluntarily placing information into the public arena.

Whilst it is not possible to publish all responses we will endeavour to publish those where we feel that the information disclosed is in the public interest.  The Disclosure Log will be updated once responses have been sent to the requester.  I have provided the relevant link below:-


The information we have supplied to you is likely to contain intellectual property rights of Northumbria Police.  Your use of the information must be strictly in accordance with the Copyright Designs and Patents Act 1988 (as amended) or such other applicable legislation.  In particular, you must not re-use this information for any commercial purpose.

How to complain

If you are unhappy with our decision or do not consider that we have handled your request properly and we are unable to resolve this issue informally, you are entitled to make a formal complaint to us under our complaints procedure which can be found at: http://www.northumbria.police.uk/foi/disclosurelog/foicomprights.asp

If you are still unhappy after we have investigated your complaint and reported to you the outcome, you may complain directly to the Information Commissioner’s Office and request that they investigate to ascertain whether we have dealt with your request in accordance with the Act.


FOI Complaint Rights Procedure_tcm4-28029