With the advent of modern technology ,judicial discomfort in admissibility of expert technological
evidence is on increase.Standard
of proof,conclusiveness,rebuttal all are of great concern.From a scene of crime one ay trace out blood stains, hair, flesh, semen,or the corpus.Still in disputed parantage ,of a child ,THAT MAN, THAT WOMAN, and THAT CHILD are very much there.Narco Analysis Test is lie detector test,or truth system testing.P300 TEST we call.Electrical impulses create p300 waves giving indicationsof laison with a particular aspect.But it is only a
corroborative evidence.DNA is powerful means ,but still corroborative.