
If drivers are not legally entitled to drive a firm's vehicle then that firm's insurance will be invalid. If that driver then has a crash then the firm is going to be in big trouble. Ignorance is NOT a valid defence. Taking a copy of a new employee's driver's licence is not enough. That driver could be using a fake licence or someone else's licence. They could have a medical condition that is mentioned on the licence, but the firm does not know what the code on the licence means.