 This difficulty motivated the development of a non-classical theory of probability and evidential support by Dempster (1968) and Shafer (1976). Legal probabilists, however, need not reject classical probability theory. They can respond that the difficulty just described arises only because one is inclined to measure the strength of evidence in terms of the posterior probability \(\Pr(H \pmid E)\), rather than by means of the likelihood ratio (on this distinction, see earlier in  Section 2).  If \(E\) weakly supports \(H\)—that is, the likeklihood ratio