Activities of Federal Law Enforcement Agencies Toward the Branch Davidians… (1996)
“ While scientists can estimate the levels which would prove lethal to 50 percent of a given population, it would be incorrect to presume that half of that quantity would kill 25 percent of that population. In fact, the most well-known study of the effects of CS on humans estimates that the likelihood of death after exposure to a dose of CS that is one-tenth the estimated lethal does is less than 1 in 100,000. [33] Accordingly, any analysis of the lethality of the CS agent used in the concentrations that resulted on April 19 can only be performed in light of the 50 percent lethality estimates. ”
