I've read Matt Delito's posts on Gizmodo for while, so when I saw he'd released a book I bought it straight away.
Some of the content is stuff I've read before online but there's enough new content for the book to be well worth reading even if you are familiar with Matt Delito's writing.
A very enjoyable read. I finished reading it in one sitting. I'd recommend this book to anyone who has a geeky curiosity about the Metropolitan police force. Service.... I mean service.