I am a little concerned as I have insured a friend to drive for me whilst I have an ankle injury. We was heading down a dual carriageway where roadworks were happening, lots of cones throughout this 2 or 3 mile stretch which is usually 60 in to a 70mph zone. To be fair he stuck to 40mph for the majority of the road, however there were only three signs stating maximum speed as 40, these were yellow signs with just text and not the usual type, also not the easiest to see as it was raining and there were tons of differing signs. These only covered the first 1/4 of the dual road which had now been coned off in to a single, once we got most of the way down the road he started to put his foot down as there was a 'no stopping, end' sign which he SOMEHOW mistook for an end of roadworks sign. I asked him why he was returning to the usual speed limit of the road, then he realised and slowed down. Now the reason I am worried is because I did see someone with an item in their hands, although likely one of the workers with a tool but I am super paranoid. We drove it back around to have another look, couldn't confirm this. We did notice though even after the road returned to a dual carriageway that there was nothing to say the speed limit had returned to normal. This was quite late at night, around 11pm? I know there were no fixed cameras, I am just extremely worried about the speed guns. If what I saw was in fact a speed gun, would we have been stopped immediately? Does he have any reasonable explanation, should signs have been implemented for most of the road? Also if it was a speed gun and he happened be going 20+ over the limit, how long would contact take? Sorry about my English, its my second language. Thanks!

Hello, I was travelling to London from Leicester on Saturday 7th June 2014. I went through several M1 southbound road works and mostly kept up with packs of motor cars and only checked my speed gauge at the beginning of the road works to ensure I complied. There were two occasions when I had to overtake, once when a driver was down to 40mph and created a huge gap ahead with a long line of tailback. The second time was when the driver ahead of me was texting on the mobile and at times quite erratic, the lanes being quite narrow and so choosing a moment of safety I rushed to overtake. Please see attached[ATTACH=CONFIG]52002[/ATTACH] "Notice of intended prosecution" dated 11th June 2014 but actually received 18th June 2014. I have not responded yet and seek advise as to what action I should take from hereon. I do not exceed speed limits. I have clean driving licence.