My Lords, I welcome the interesting debate that my noble and learned friend Lord Mackay has generated. He is right to challenge us to consider it and I can indicate at the outset, although I will say more, that the Government do not feel able to support his amendment. It would permit siblings of the same sex to marry, and I assume that that could include uncles and nephews, grandfathers and grandsons and mothers and daughters. The Government do not feel able to accept the extension of marriage to close relatives. Clearly, as my noble and learned friend indicated, the origins of this go back to concerns about the need to prevent incest and potential inbreeding.
However, it is also fair to point out that, in terms of procreation, not all marriages, even heterosexual ones, are contracted for the purposes of procreation. It would almost be a logical extension of the argument that when an opposite-sex couple are past a certain age, or the woman passes a certain age and is incapable any longer of having children, perhaps the degrees of affinity regulations and prohibitions should fly off. Even just saying that indicates the real sensitivity around this and how it is difficult to readily accede the point being made by my noble and learned friend.
Before returning to some of the substance of his argument, my noble and learned friend indicated in his opening remarks that he seeks by this amendment to restore Section 1 of the Marriage Act 1949 to what it was before the Civil Partnership Act 2004 amended it. It is important to point out that the 2004 Act created one gender-neutral list setting out the prohibited degrees of relationship. The amended Marriage Act makes it clear that no person can marry any relative listed in Schedule 1.
I am not founding my argument on this point because it is a technical matter which no doubt could be addressed. But in reverting back to the original Section 1 of the Marriage Act 1949, the amendment does not lead to any change in the relevant schedules, so that certainly could lead to confusion, although no doubt my noble and learned friend could do something about that if he wished to persist with this and bring forward amendments to the schedules as well. Paragraph 17 of Schedule 27 to the Civil Partnership Act 2004 replaced the two separate lists. Under the amendment, that single gender-neutral list would still stand and would need to be repealed and the original wording restored.
I have sought to indicate that the Government do not accept the principle of what my noble and learned friend is trying to achieve. He referred to platonic relationships. If this Bill is passed, it will be open to individual couples, whether of opposite sex or of the same sex, to determine whether to engage in sexual activity and to consummate their marriage. Couples are not required to consummate their marriage; there is only an option for opposite-sex couples to apply for an annulment if one party applies to have the marriage annulled on that basis.
On the point about two brothers being able to marry, as I indicated, the Marriage Act sets out the relationships of people who cannot marry each other. The Government want to ensure that same-sex couples are able to marry under the same provisions as opposite-sex couples. The provisions in the Marriage Act on prohibited degrees of relations are already capable of applying to same-sex couples and therefore no change from what was put in place for civil partnerships is required.
My noble and learned friend referred to the debate we had earlier on the amendment moved by the noble Baroness, Lady Deech. In my response to that I referred to tax issues. To be fair to my noble and learned friend, he did not use that argument. His argument was based more on grounds of principle. Nevertheless, the proposal would have consequences in terms of tax. However, I also think—I made this argument during that debate—that there are power relationships within families. Who is to say that pressure could not be brought to bear on a brother to marry another brother if it was thought that that would best serve his inheritance interests? You cannot tell what goes on in families. That is why my noble and learned friend is absolutely right to talk about the need to protect children. We are not necessarily talking about infant children or children under the age of 16, but within families lots of power can still be exerted when children are young adults or even older. While concerns about incest and inbreeding clearly lie at the heart of the prohibited degrees of marriage, there is also a recognition that within families powerful relationships can often be at play.
As I indicated, this amendment would allow father and son, mother and daughter, uncle and nephew, aunt and niece to marry. We think that the pressure is more relevant at an intergenerational level than at a sibling level, although that is not to say that it could not occur at a sibling level. Therefore, we should be very cautious about going down that road. Indeed, the noble Lord, Lord Alli, referred to civil partnerships in this connection. We believe that the nature of marriage is one which people recognise as being different from the relationship that exists between two close members of the same sex of a family. For these reasons, I ask my noble and learned friend to withdraw the amendment.