<prompt> Evidence not used in rape?Semen in vaginaSemen on clothesPresence of smega bacilli in vaginaPresence of smegma under prepuce  <response>: Ans. is d i.e., Presence of smegma under prepuce Examination in a case of rape A. Examination of victim Victim cannot be examined without written informed consent. Informed written consent should be obtained if the age of victim is above 12 years. If she is less than 12 years of age or if she is mentally unsound, the written consent of parentguardian should be taken Sec. 90 IPC. Victim female should be examined by or under supervision of a female RMP Sec. 532 CrPC. Finding which are suggestive of rape are :- Signs of struggle on clothes tear, blood, semen, mud etc, body and genitals abrasion, contusion, bites or nail marks etc. Presence of the semen in the vagina proof of sexual intercourse. Presence of spermatozoa in the vagina. Locards principal of exchange states that whenever two bodies come in contact with each other, there is exchange of material between the two and so a criminal can be linked to crime. In case of rape, piece of cloth, button, hair, blood, saliva, semen or smegma from the accused may be found on the body of victim and conversly materials of victim may be found on the body of accused. Presence of smegma bacilli in vagina is suggestive of coitus. B.Examination of accused An accused can be examined even without his consent Sec 53A CrPC. Findings may be Presence of torn frenulum is consistent with a recent intercourse. The presence of smegma under prepuce is inconsistent with recent intercoures as it gets rubbed off during sexual intercourse and may be deposited in vagina. It takes about 24 hours to accumulate. Thus, absence of smegma may indicate sexual intercourse, provided no bath is taken. Presence of vaginal epithelial cells on penis can be detected by lugols iodine. 