Originally Posted by
Afterall
My thanks for the quick replies. I'll recommend a visa, though it seems doubtful he'd need one (the itinerary is all BA). He's a professional with excellent English and unlikely to raise concern with an IO, but one never knows.....
He needs one if he wants to be 100% secure. Not to have one is to gamble. Just so that you're sure: a visa is required but that requirement can be waived at the IO's discretion. The difference in wording is important.
The fact that it is all one BA itinerary is of no consequence. It is about having an onwards ticket <24hrs.