Complex sentence: The BBC reported that staff may have been told not to scan biometric passports at certain times; these contain a digital image of the holder's face which can be used to compare with the printed version and check the passport has not been forged.
Split into simpler sentences: The BBC reported that staff may have been told not to scan biometric passports at certain times. These contain a digital image of the holder's face which can be used to compare with the printed version and check the passport has not been forged.