How to read what is here

These pages describe how something works. They are not a substitute for advice that takes a reader's own position into account.

How current this is

Things move on. A page that was accurate when it was written can be out of date by the time it is read, and no undertaking is given that every page is current.

Sites linked from here

Websites reached by a link are outside anyone's control here. Once a visitor leaves, that website's rules govern the visit.

How to reach us

For anything to do with a point covered on these pages, the address to use is [email protected].