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A new witness has come forward to back the story of a British couple facing a month's jail sentence in Dubai for kissing in public.

Ayman Najafi, 24, and Charlotte Adams, 26, are awaiting the outcome of an appeal against a conviction for public indecency in a Dubai restaurant on November 27.

The Daily Telegraph reported that the witness is understood from sources close to the case to have been present at the restaurant, but not to be one of the four friends with whom Najafi and Adams were eating.

The couple are hoping that a verdict will be given in their favour at a hearing on April 4, after they told an appeal court judge on Monday that they had merely kissed each other on the cheek in greeting.

The original complainant told police she had seen the couple kissing each other on the lips and touching each other - a violation of laws against public indecency.