Disordered Minds written by Minette Walters performed by Greg Wise on Audio CD (Abridged)

Jonathan Hughes, an anthropologist specialising in social stereotyping, is determined to re-examine this case. There were alarming disparities in the evidence and Hughes has little doubt that there has been a terrible miscarriage of justice. But there is also something else pushing this half-Iranian, half-Libyan outsider to reach for the truth . . . This is more than a mere expose of corruption, it is a dark tale of solitude...

and the relentless need to contain aberration and section evil.