Do you have a biometric scanner to record attendance and time? Are you considering biometrics to prevent buddy punching? Do you know about buddy punching? This is done by another employee on your behalf when you are not present in that place. The tracking system shows you are in at the right time; actually you may be late by 15 minutes.
Having Fingerprint attendance system helps employees to arrive on time and recognizing the fingerprint implies each employee must be present personally. This is a technique employed by organizations so that they can save the cost and get genuine work done.