I would assume the UK has worked out a way of dealing with this having had plenty of years of foreign plates being driven around the country.
Any Danish license plate driven in the UK will almost certainly have to a be an EU style plate with the blue band on the left with the "DK" country code. If someone needs to send a fine to the registered owner of this plate I'd guess they'd be handing over the camera footage/images to a contact in the relevant country and letting them confirm what the exact plate is.
(There may be some weird exemptions for old classic/vintage cars that can continue to be driven on their original number plates, in which case you really don't know who to contact.)
The UK is very strict on license plates. I don't think there's any valid reason for driving a car without some form of a license plate on display (cars being driven on trade plates placed in the front/rear windscreens are the closest thing I can think of). I'd expect the UK Police to pull over any car that didn't have plates on it if they spotted it. It's certainly considered very suspicious in the UK if a car is missing either of its plates.
There are plenty of examples of normal ANPR cameras failing to capture plates properly. Or even sillier examples like this: https://www.bbc.co.uk/news/uk-england-somerset-58959930
This story got referenced by the associated Government body here: https://videosurveillance.blog.gov.uk/2021/10/27/the-camera-...
Similarly, I've been flashed for speeding in France, which does have cameras adjusted to my plates' size, but they also didn't bother sending a ticket. Germany - on the other hand - will send you a ticket, but since they allow Ö, Ü, etc. on their plates, their system can probably handle Æ, Ø and Å as well.
Edit: Obviously, they don't bother to a degree; severe infractions will obviously make local law enforcement do something, but it's a rather manual process. Most countries are signatures to a treaty, that recognises other countries' plates.
- improved prompts with your feedback
- added post/comment shuffling to remove recency bias
- tried to fix the speech attribution errors in the xkcd
Specifically this roast:
> You have commented about the specific nuances of Danish VAT and accounting system hardcoding at least four times, proving you are the only person on Earth who finds tax infrastructure more exciting than the books being taxed.
Yeah, but I did it on the same story (i.e. context).
Though the other details it picked up, I cannot really argue with: the VAT bit just stood out to me.