Wednesday, 2 November 2011

Emedinews:Insights on Medicolegal issues:How should a saliva sample of saliva be collected in a medico legal case?

A sample of saliva is required to be collected and preserved in the cases of oral sex, rape/acquaintance rape/date rape, sodomy, sexual assault/drug-induced sexual assault such as the molestation, inappropriate touching, forced oral contact or kissing, child sex abuse, sexual torture or any other form of allegation where exchange of saliva is anticipated on medical examination by the examining doctor.
• The written/implied consent for examination and collection of evidences from the women alleging sexual assault must be obtained by the doctor as per section 164 A of CrPc; however, consent is not required under section 53 CrPc of India for examination and collection of evidences from the alleged accused of sexual assault.
• Dried saliva should be collected by the doctor by a swab of normal saline.
• Saliva is collected in a test tube, diluted with an equal volume of normal saline and placed in a boiling water bath for about 10 minutes for destroying enzymes which inactivates blood group substances, allowed to cool and transferred to a clean, sterile and well stoppered bottle, properly sealed and labeled.
• Saliva tinged clothing must be preserved, properly sealed and labeled for further investigation

(Contributed by Dr Sudir Gupta)

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