Over the last 100 years the way in which crime is detected and criminals are identified and convicted has changed radically due to the development of forensic science. Written by the leading forensic scientist Dr Zakaria Erzinclioglu, and updated by Dr Sharon Erzinclioglu, this book presents a gripping study of the techniques that are familiar to us from media reports or television dramas. Many recent and historic cases are discussed in detail, including those in which the author himself was an expert witness.