Entirely thanks to Enquiring Minds, I have found Feedity, which will turn a web page into a RSS feed where it lacks one. Given the lack of RSS feeds for all kinds of legal and government sites, this is a very useful thing if it works as advertised.
I have added a trial (sorry) feed for Court of Appeal civil judgments to the right. But I can see all kinds of possibilities.

A fantastic find.
[...] Legal points us to Feedity, a terrific widget that generates an RSS feed from any web page: Feedity has a [...]
[...] Nearly Legal UK I can see all kinds of possibilities. [...]