The couple, from Washington, Tyne and Wear, said they had never left the UK and only got their passports last year.

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On the issue of passports, Mr Jenkins said he anticipated it would not be a problem for Scots living in other parts of the UK to have a two passports.

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But Labour claims the issuing of horse passports in the UK is fragmented, as there are 75 approved issuing organisations in the UK, with no national database to track the information.

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