M1 speed cameras are working in the lane management system bit near J13. I was heading northbound when I noticed there was a lot of flashing on the southbound side. I’ve been told by a source that there active now and have been for about a week. I’ve also been told that the M42 is the same and when it displays a 50 in the red circle you still get done for going over. So don’t get upset if I am holding you up on either road 