On Sun, 21 Dec 2014 17:11:10 +0000, Syd Rumpo wrote:

I thought the ACPO 'rule' was that there would be no prosecution within
speed limit + 10% + 2, ie 35mph or less in this instance.

I got a course for 46 in a 40, which is exactly 10% + 2.

The ACPO guideline is a guideline.