Sussex Police have run such a site for years now, or at least you can make a report and include the url to the footage uploaded to Youtube or similar. They do however prefer it if the footage is not made publicly viewable in case they decide to purse it.
https://www.bbc.co.uk/news/technology-44682669
The dashcam footage of the drink driver in that link is from my neck of the woods, I use that dual carriageway and roundabout everyday.