Free Traffic Legal Advice

Good evening all,

I've tried a search for similar cases but can't find a similar case.

I've just received a postal PCN, dated 03/06/2026, for an alleged contravention on 07/03/2026. There are tiny photos on the PCN, but when looking at the online pictures I can't see any signs that prevent the manoeuvre at the junction (the name of which isn't actually referenced in the PCN - it just says Maple Street).

The circumstances are that the approach to the junction, according to the evidence provided, has a one-way arrow at the entrance to the crossroads. The car is seen driving in the correct direction for the arrow but then turning left at the junction into a two-way road. The determination that the crossroads leads to a two-way road is based on the photos which show a pedestrian warning painted on the road saying "Look Both Ways" and what appears to be a cycle box with a solid line which goes halfway across the road in the opposite direction.

I genuinely don't understand what the contravention is for, as there are no additional signs saying no left turn and, having had a look in the (online) Highway Code, the only references I can find for a one-way sign suggests there are two distinct types - The circular "Ahead Only" sign and the rectangular "One-way Traffic" sign, and it is the rectangular one at this junction.

I think I have reasonable grounds to make representations on this, but wondered if I could please get some help with the wording, so it doesn't get rejected for a poor argument?

Here are links to the PCN and a better image of the one-way sign
PCN - https://imgpile.com/p/jkIhgjB#UOqTm1E
One-way sign - https://imgpile.com/p/jkIhgjB#5PpCAQd