Q: If a novice driver is accompanied by someone over 25 who has a full class 5 license but is currently serving a 90 day immediate roadside prohibition, are they within the law? Does this count as an appropriate "Supervisor" ?
(b) holds a valid and subsisting driver's licence, other than a learner's licence or a Class 7 licence, of a class that permits him or her to operate a motor vehicle of that category, and
If the supervisor is a prohibited driver their licence is not valid and subsisting so they cannot legally supervise a new driver.
Wasn't it in Sicamouse where a novice or learner was charged for not having a supervisor when his grandfather was found to be impaired? If I remember correctly this charge was dropped even though technically due to his impairement his licence would have been invalid at the time.