One career move which I've been encouraged to consider in the past few months is going for a Driver Instructor role. At my TOC, any incidents that occur whilst a Trainee is driving end up on the Instructor's one and only Train Driver Licence, these incidents are not recorded seperately. However, I've heard that at other TOCs/FOCs, Instructors are given a seperate Instructor's licence so that any incidents which occur whilst a Trainee is driving do not end up affected their Safety of the Line Record in the same way. Can you please share which approach you're most familiar with? Perhaps at some employers it works completely differently?