Murder Will Out tells the story of ten sensational Irish murders and how they were solved. In every case, the key to solving the crime lay in the skills of the Garda Technical Bureau. All the murders described in this book were solved by a mixture of old-fashioned detective work and modern forensic science.

The emphasis throughout the book is on the work of the Gardai, concentrating on the painstaking and patient work that led to successful prosecutions of the accused. Every case detailed in Murder Will Out resulted in a conviction.