These Notes & Materials ... are a distillation of the author’s research and experience on the topics they contain. Like any papers on matters of law they will go out of date and, in some areas at least, turn out to be wrong (do please advise errors and omissions. I always ask, but people seldom do …). Readers should seek appropriate advice before setting off on any journey into real-world cases involving lawyers, inspectors, judges, courts, tribunals and councils. It is a minefield out there.