The individuality of tagging powders--the Lycode system.

A system is described which uses dyed Lycopodium spores of various colours, in fixed ratios, to yield tagging powders of high information content. A paper presented at the 6th meeting of the International Association of Forensic Sciences, Edinburgh, 1972. The manuscript of this paper appeared in the International Microform Journal of Legal Medicine (1973 Vol. 8, No. 2, Card 9, Item 42). The powders are the subject of British Patent 1399551 (1972).