From midnight tonight same sex couple across England and Wales can enjoy full marriage ceremonies and the same rights as heterosexual couples.
The govenment's legislation came into force last July and couple's were able to register their intention to marry under the act on March 13.
A number of couple's are bidding to become the first ever to be married in Britain by trying to time it so their vows are said just seconds after midnight.
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The decision on how officers will give evidence to the investigation into the controversial police tactic will be made public today.