This is an HTML version of an attachment to the Freedom of Information request 'Privacy mechanisms in CPRD'.

By email to  
Ross Anderson 
[FOI #109883 email] 
Ref No:  FOI 12/131 
18 April 2012 
Dear Professor Anderson 
Thank you for your email of 17 March 2012 in which you requested information about Privacy 
Mechanisms in CPRD. We have now completed searching for the information you requested. 
A copy of the information, which can be disclosed, is enclosed.  
The remainder of the information that you requested is exempt under section 43 of the Freedom of 
Information Act. I have explained at each stage in the attached document the reasons for the 
If you are dissatisfied with the handling of your request, you have the right to ask for an internal review. 
Internal review requests should be submitted within two months of the date of receipt of the response to 
your original letter and should be addressed to: Policy Division FOI Unit, MHRA, 151 Buckingham 
Palace Road, London SW1W 9SZ. Please remember to quote the reference number above in any 
future communications. 

If you are not content with the outcome of the internal review, you have the right to apply directly to the 
Information Commissioner for a decision. The Information Commissioner can be contacted at: 
Information Commissioner’s Office, Wycliffe House, Water Lane, Wilmslow, Cheshire, SK9 5AF. 
Yours sincerely, 
Dr John Parkinson 
CPRD Director 
[email address] 
Copyright notice 
The information supplied in response to your request is the copyright of 
MHRA and/or a third party or parties, and has been supplied for your 
personal use only. You may not sell, resell or otherwise use any 
information provided without prior agreement from the copyright holder. 
For full details on MHRA copyright policy please visit: 
=412 or e-mail the MHRA Information Services Central Enquiry Point