CSI in the 1860's to now By codycluff Jan 7, 1820 bullet comparisons In scotland yard Period: Feb 7, 1820 to Feb 7, 1900 CSI Feb 7, 1825 Mathieu Bonaventure Orfila, who is considered the father of modern toxicology, published "Traite des Poisons" Feb 7, 1840 tissue samples Period: Feb 7, 1840 to Feb 7, 1900 CSI techniques in 1800's Feb 7, 1850 Body tempuature Using a person body temp. to find out when they died Jul 7, 1858 fingerprinting Feb 7, 1900 gunshot residue