December 13, 2024 - 1:00pm

The most important question surrounding cousin marriage isn’t whether it should be banned. It’s why it’s still legal in Britain, years after the risks to children’s health — and women’s welfare — became known. Last week, the Government responded to a Conservative MP who wants to outlaw the practice with yet more stalling. Ministers don’t deny the impact on children, but Downing Street says it has no plans to change the law.

It’s a morally indefensible position. We now have years of studies showing that first-cousin marriage is a major risk factor for congenital abnormalities, including heart defects, cystic fibrosis, cerebral palsy and impaired hearing. It also raises questions about whether young women are being put under pressure to marry relatives, denying them free choice and keeping wealth within the family. Sweden has announced it will ban the practice next year, and similar legislation was adopted in Norway this summer.

But the UK, it seems, is wedded to a policy of inaction. It has been left to a former Tory minister, Richard Holden, to bring forward legislation that has little chance of becoming law. An independent MP, Iqbal Mohamed, defended the practice this week in the House of Commons, saying it shouldn’t be “stigmatised” and calling for advanced — and expensive — genetic screening to be made available instead. He said the freedom of women “must be protected”, but that cousin marriage “helps build family bonds […] and put families on a more secure financial foothold”.

It’s since been revealed that an NHS trust in Bradford has published material comparing cousin marriage to white women having children over the age of 34. “This is largely a result of choosing lifestyles embedded in liberal values such as preferring jobs, careers, bodily fitness and individualism over giving birth before the age of 34,” the trust claimed. The first rule of misogyny is that it’s always women’s fault, even though older motherhood may be the result of infertility and a lack of suitable partners, rather than regular trips to the gym. But cousin marriage is “a cultural practice in Asian/British Pakistanis heritage” — and therein lies the problem.

The word “culture” has long been used to close down criticism. It happened in the last century, when some feminists argued that female genital mutilation (FGM) was embedded in culture and shouldn’t be criticised. It was a Labour peer, the author Ruth Rendell, who campaigned to change the law, resulting in the Female Genital Mutilation Act 2003, but years passed without prosecutions.

A couple of years later, the Labour MP Ann Cryer, whose West Yorkshire constituency included a large British-Pakistani population, called on families to abandon cousin marriage, describing it as a “public health issue”. She was immediately attacked by Mohammed Ajaib from the Keighley Muslim Association. “People have been marrying their relatives like this for centuries and there’s not been any problem,” he claimed.

The reaction to Cryer’s measured remarks speaks volumes about why so many Labour MPs have remained silent. Many inner-city MPs depend on British-Asian votes, while the war in Gaza has made them even more fearful of causing offence. Iqbal Mohamed, who opposed Holden’s bill last week, stood on a pro-Palestine platform in this year’s general election and took the Dewsbury and Batley seat from Labour.

The changing electoral map is the most pressing reason for the Government’s lack of enthusiasm for outlawing cousin marriage. But it’s also rooted in a craven attitude towards “culture”, which is often cover for perpetuating patriarchal practices. Not offending other “cultures”, unfortunately, always comes before the welfare of women and children.


Joan Smith is a novelist and columnist. She was previously Chair of the Mayor of London’s Violence Against Women and Girls Board, and is on the advisory group for Sex Matters. Her book Unfortunately, She Was A Nymphomaniac: A New History of Rome’s Imperial Women was published in November 2024.

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