In Sasi Thomas v. State , (2006) 12 SCC 421, fairness of investigation is held to be an important facet of the rule of law. The Supreme Court has, in this regard, observed as follows:- Proper and fair investigation on the part of the investigating officer is the backbone of rule of law. A proper and effective investigation into a serious offence and particularly in a case where there is no direct evidence available assumes great significance as collection of adequate materials to prove the circumstantial evidence becomes essential. # Investigation This is a case of Murder of wife by husband obtaining of false certificate from doctor certifying heart-failure as the cause of death and buried the dead body. Brother of deceased filing complaint raising suspicion about the cause of death. Dead body exhumed. Post mortem report reveals that she died of insecticides poisoning. Final report stating that deceased committed suicide. Challenge to High Cour...