Grainne Close goes to court tomorrow with her civil partner Shannon Sickels. They hope their case can change NI law on same sex marriage.

A lesbian couple in Northern Ireland are going to court tomorrow to argue that Northern Ireland's law preventing same-sex marriage is an assault on their human rights. Shannon Sickels and Grainne Close made history ten years ago when they became the first couple in the UK to enter a civil partnership. Now they hope to make history again by trying to change the law here allow same-sex couples to get married. Grainne Close told William Crawley what they hope to achieve in the courts tomorrow.