Book excerpt: Led by Professor David Ormerod and David Perry QC, our team of authors has been hand-picked to ensure that you can trust our unique combination of authority and practicality. With a simultaneous supplement containing essential materials, you can rely on Blackstone's Criminal Practice to be your constant companion through every courtroom appearance. This new edition has been meticulously revised to provide extensive coverage of all new legislation, case law, and Practice Directions. With free Quarterly Updates, and monthly web updates, you can trust Blackstone's Criminal Practice to provide reassurance on all the latest developments in criminal law and procedure.