KANCHANPUR, Aug 31: After finding Nirmala Pant' body, police personnel washed the suruwal worn by her in order to destroy evidence, it has been learnt. Although police are supposed to take precautions to preserve evidence at the scene of a suspected crime, their act of washing a clothing item which was worn by the victim and which could contain valuable evidence such as blood and other body fluids, has raised further suspicions about their motives.