Through the single case of the misindentification of a fingerprint at a crime scene, the whole system of fingerprint identification as practiced on behalf of police investigations and prosecutions in the UK is brought into question. Far from being scientific and reliable, the system is open to error, and, worse still, when error is exposed, police experts, police officers, prosecutors, the judiciary, minister and other politicians close ranks and refuse to acknowledge even the possibility of error - at appalling personal cost to the victims of the error and to the public purse.
This scandalous situation has been brought to light through the untiring and heroic work of the victim, Shirley McKie and her father, Iain McKie, who could never bring themselves to follow the easy solution of pretending that nothing wrong had ever happened.
This book is sometimes hard going, not because it is badly written, but because it reflects the tedious and gratuitous processes through which state officials and politicians have attempted to prevent the exposure of defective institutions for which they are responsible. But it should be read by everyone in the UK, because none of us can ever predict when a fingerprint found at a crime scene might be attributed to one of us, with the result that a person's life might be transformed into a Kafaesque nightmare.