Dr. Ephraim Nissan has a long record of research in artificial intelligence (AI), including on AI & Law. He has held research positions at various universities, and since 1994 he is based in London. He has over 320 publications, of which 115 are articles in journals. He also holds an honorary fellowship in the humanities at the University of Manchester. In the late 1980s, his ALIBI model was a seminal project in the area of this book. From 1996, by means of editorial projects, he has had a central role in bootstrapping into existence, as a unified field, the AI modelling of reasoning on legal evidence, and in moving this field into the mainstream of AI & Law scholarship. This effort's culmination is this book. He has established three scholarly journals, and been a guest-editor about twenty times, of which the topic of six was within AI & Law.