An interesting question came up earlier today in an email (uninvited) from a person who travels on an Egyptian passport. She wants to apply for a Standard Visitor Visa.
The form asks as question like "Have you ever visited the UK?", here's a screen shot...

The person has not been in England or Wales or Scotland or Northern Ireland, but they have travelled to Gibraltar recently and have seen that this country is a 'British Overseas Territory'. So should they answer 'yes' and fill out the Details Section?
Or alternatively would answering 'no' place them in jeopardy of a refusal for deception?
I suppose the answer would be canonical for all British Overseas Territories unless special conditions applied to Gibraltar. If your answer is canonical to all British Overseas Territories please indicate specifically.