We all know some drivers cause congestion by hogging the middle lane for no good reason.
There are also common sense reasons for staying in the middle lane for extended periods, due to traffic conditions.
So, sometimes it's sensible, sometimes it's not. Assuming this will be policed by overhead cameras, how will a few
shots determine the difference, because the conditions can be complex.
I don't see how "guilt" be proven, that would need extended video of all the prevailing traffic conditions.
You wouldn't even know until you got a fixed penalty by post, and unless you had a dash mounted camera,
and archived the buffer, how could you prove your action was reasonable due to the circumstances ?
Most people will just pay the fine, and accept the points. An increased insurance premium will eventually follow.
Another half baked money spinner, for all concerned, except the motorist who eventually foots the bill.