Acknowledgements
The authors would like to thank everyone who has contributed to this book and all the authors of previous editions.
Thanks are particularly due this year to Alice Tichborne, Dave Kelly, Nick Turnill and Mark Rogers.
We would also like to thank Bridget Giles for editing and managing the production of the book, Katherine Dawson for compiling the index and Kathleen Armstrong for proofreading the text.
The law covered in this book was correct on 1 March 2021. It includes regulations laid and judgments delivered up to this date.