Recording mot

As I understand it you can have cctv on your premises but no direct recording of a live mot test on the test lane if the MOT viewing area is away from the test lane  you can  have camera's on THAT but you cannot save any recordings  of the test under the data protection act however  I could be wrong 

This is often stated, in reality, we have multiple sites which have cctv viewing areas that are recorded. Never been picked up on it and they were all authorised that way.