It is said that a crime can not be committed without leaving an evidence. So there is no full proof crime to evade detection.It is impossible. It is also said that IPS is the second best police service in the world in crime detection. So let them arrest somebody and prove to the world of Jehadis that they can not play around with India. But exactly that is not happening because political will is lacking. There has been placating of muslims for the votes,that has been the problem in the indian polity. A serial blasts can NOT happen without local support. graduates or techocrats may not have involved at all because very crude techniques were used in the bombs. These may be old time criminals because they were afraid of chassis numbers and hence they used only bycycles. But bycycles can be identified if at all they are very new. Also the defused bomb will give away finger prints,locally available tools and their design and makers as well. Indeed quite a lot of evidence. Even then if police could not find anybody at all simply means lack of political will. The local support must have been there and this is weakest point for the criminals, they can not get away with this because jehadis can hardly mask themselves. The old time jehadis,fanatics ,rumor mongers must be brought for interrogation and it is likely that these fanatics might be political goondas as well , so the state administration should give a free hand to the police and this mad act must stemmed in the begining.
