Publication of the new 17th Edition of Phipson is an occasion for welcome and congratulation. There are few topics in the law of so wide a reach， of such importance， and yet so demanding of illumination. Phipson is equal to its task. Its breadth is breathtaking. Where else can one find teaching of such quality in relation to the criminal law， the law relating to opinion evidence and to experts and the evidential role and use of statistics?
