I was very concerned by the email from ES of Newton Abbot published 10 March 2012 who claimed to have been clocked at 54mph in the 50mph section of the M4 in Wales. I have caused the records to be checked and have found someone with those initials who lives in that area who was clocked at 57mph. I am happy to state however that I was delighted with your response. For future reference we apply the ACPO threshold throughout Wales.