I agree: there is no such thing as "the perfect crime" and the use of end-to-end encryption does not make it so. What there is a however is a lack of good, old-

I agree: there is no such thing as "the perfect crime" and the use of end-to-end encryption does not make it so. What there is a however is a lack of good, old-fashioned police-work in criminal cases where the police run up against end-to-end encryption.