It is surprising that how police became so blind in indentifying these culprits for such long time. Any reasonable thinking person get doubt police complicity in this case. The police incharges who were negligent in investigating missing children should be made co-accusers in this case. Their negligence or complicity can not be less sin than that of moinder or his sevent.
The president of India should use his special discretionary powers & assign the entire investigation to a special agency directly reporting to him. The parliament of India should make a special legislation on this case superseding all other laws for speedy trial & public capital punishment for all the people including police involved in this heinous crime against humanity.