Michael Bilton has, in my view, produced the best book yet on the Yorkshire Ripper. Bilton takes you through the entire case and each murder individually, highlighting the evidence and events without sensationalising them at all. He does not just accept the recorded version of events but examines thoroughly any errors or discrepancies he sees before coming to a conclusion about the reality of events. For example, he looks into the possibility that one of the Ripper's victims in Manchester may in fact not have been killed by him at all, and comes up with some pretty convincing arguments. He backs all of this up with detail of Yorkshire life and policing, and portraits of the officers involved in the case to provide a thorough study of how events unfolded.
The book could have been improved by some interview with the Ripper himself. I can understand why Bilton did not want to do this, but I cannot concur that the Ripper could not tell him anything about the crime of use. It is essential that we try to understand these people and their motivations. Unfortunatly this means given them the attention some of them crave, but it is a worthwhile sacrifice if it assists our understanding of such evil people.
Bilton focuses also on the victims and their lives, rather than glossing over them and focusing on the criminal alone as many books of this genre too. He provides a good insight into how the lives of the families and the police officers involved were affected. Whilst undoubtedly the police made mistakes, they are too often turned into the enemy, with little understanding as to the pressure they were under. Bilton looks closely at methods of investigation at the time and the problems this caused in such a massive investigation. A small criticism is that he does tend to be slightly biased towards the police and give them a bit too much benefit of the doubt over their mistakes, which really were far too many whatever the pressure of the investigation.
The book is a very thorough study of the case but one aspect I would have liked a bit more of an examination into is the Wearside Jack issue - who the hoaxer might have been and his motivations. This was a crucial part of the investigation and I felt a bit more detail on this would have been useful to put the hoaxer issue into context. However, overall this really is an excellent and important book and well worth a read for anyone with an interest in true crime.