I found a link to this PDF in my collection of bookmarks: Criminal Poisoning: Investigational Guide for Law Enforcement, Toxicologists, Forensic Scientists, and Attorneys by John Harris Trestrail, III (2nd Edition, 2007). Some other offerings:
- The Essentials Of Forensic Medicine And Toxicology by O. P. Murty (33rd Edition, 2015, 717 Pages).
- The Poisoner's Handbook: Murder and the Birth of Forensic Medicine in Jazz Age New York by Deborah Blum (2011, 298 pages).
- Analytical toxicology for clinical, forensic, and pharmaceutical chemists by Hans, Brandenberger, Maes, Robert A. A (1997, 765 Pages).
- Textbook of Forensic Medicine and Toxicology by Krishan Vij (5th Edition).