https://www.scconline.com/blog/post/2022/09/13/madras-high-court-code-of-criminal-procedure-narcotic-drugs-and-psychotropic-substances-act-1985-preponderance-of-probability-heroin-animus-culpabl-mental-state-wheat-flour-tamarind-narcotics-contr/
Madras High Court set aside conviction of the accused for possessing Heroin believing it to be tamarind and wheat flour; observes in some peculiar circumstances the knowledge of contraband cannot be attributed to the accused