Phenomenons and Suicide VS Homicide

Firearm:Tests, Phenomenons and Suicide VS Homicide DERMAL NITRATE TEST ( PARAFFIN TEST ) METHOD: Molten paraffin wax is brushed on the suspect’s hand                 After hardening, it is peeled off. The inner surface of the wax cast is then treated with diphenylamine or diphenylbenzidine reagent. Blue colour ’ develops wherever the powder residue is present  DRAWBACKS: […]