CBI can question Aarushi's mother and send her for Narco Analysis and Brain maping and polygraphic tests. CBI can use Heavy Torture Methods on people like Krishna, Aarushi's mother, Father etc. So that they can find the secrets of the murder of the Girl. Aarushi was Good Girl or Not. That's not a matter. The actual matter is a murder which occured in a house of a highly security covered AreA.
