1. Aus ?The Sacrilege? von 1914,
2. zitiert in Anthology of the Murderous Mind, Vintage, London, 1996.
3. (a) Manual of Fingerprint Development Techniques, Home Office, Police Scientific Development Branch, London, 1992. Erhältlich bei:
4. The Fingerprint Group, Police Scientific Development Branch, Home Office, Woodcock Hill, Sandrige, GB-St. Albans, Herts, AL4 9HQ;
5. (b) Developments in Fingerprint Visualisation in Forensic Science Progress 3 (Hrsg. und ), Springer, Berlin, 1988, S. 91;