The biometrics has its role in access control system involving the human touch, your face, finger, iris and what not is identity in the entry privilege to important work places.
Don't you see a revolution in access control system? Human elements are research subject for identification and every time new access method is announced. Recently the payment emperor Paypal has also introduced online identification biometrics using Samsung phones.
Scholars must get alerted to put more research on the revolutionized bio-enabled access control system to give better insight to technology.