The four Supreme Court justices - Lord Phillips, Lady Hale, Lord Clarke and Lord Wilson - upheld a Court of Appeal ruling the ban was "arbitrary and disruptive".
The law was introduced under Labour in 2008 to help address the problem, following growing concern over British Asian girls being betrothed against their will to foreigners.
Campaigners against forced marriages described the ruling as a “complete blow” to efforts to protect vulnerable young people, days after David Cameron announced moves to tighten up the law on forced marriage.' (Telegraph.)
All but one agreed that the law should not trump Article Eight of the European Convention on Human Rights, which protects the right to family and private life. SCRAP THE EVIL ECHR - NOW!