Just going back to this topic - and with emphasis on that case of the driver who was fined for being slightly over the white line and too close to a cyclist coming in the opposite direction, who was nearly in the middle of the road while going past a stationary vehicle.
One thing which is not legislated for on any level, as far as I can see, is the situation I've been in several times recently, where I'm going down a road with many cars parked on both sides, thus narrowing the total available road space. As a consequence there is only a very narrow gap between me and a car coming in the opposite direction. That situation is not the fault of either of us, but the net effect is identical to the one where the driver got a fine.
I will say I've not felt in any danger on any of the occasions, as both me and the cars have passed in straight line parallel, with sufficient space to avoid a collision. Obviously the speeds were not very fast, but the situation effectively identical and could be repeated several times on the same stretch, and over many days.