A forced marriage is one in which one or both spouses do not (or, in the case of some vulnerable adults, cannot) consent to the marriage but are coerced into it. It is not an arranged marriage. In an arranged marriage both parties have consented to the union but can still refuse to marry if they choose to.
Karma Nirvana took into account some 3000 responses which that body had received as a result of their campaign. The new law will be accompanied by a range of measures to increase protection and support for victims and a continuing focus on prevention.
In 2007, the Forced Marriage (Civil Protection) Act 2007 inserted Part 4A into the Family Law Act 1996 to create Forced Marriage Prevention Orders (FMPO). The FMPO came into force on 25th November 2008 and 414 FMPOs were issued up to the end of 2011 - (The Independent 2nd April 2012).
The government's Forced Marriage Unit offers help. In 2011 there were 1468 instances where the FMU gave advice or support related to a possible forced marriage.
UK Government signs up to Council of Europe Convention: The government has signed the Council of Europe's Convention on preventing and combating violence against women and domestic violence. Interestingly, Article 37 commits the UK to take the necessary legislative or other measures to ensure that the intentional conduct of forcing an adult or a child to enter into a marriage is criminalised. Also, parties shall take the necessary legislative or other measures to ensure that the intentional conduct of luring an adult or a child to the territory of a Party or State other than the one she or he resides in with the purpose of forcing this adult or child to enter into a marriage is criminalised.
Parliament - very useful material - Briefing Paper
Ministry of Justice - Forced Marriage
An interesting case relating to FMPOs was A Chief Constable v YK and others  EWHC 2438 (Fam) - Sir Nicholas Wall (President of the Family Division). A summary of the case is at Family Law Week. Given the facts of the case, questions of Public Interest Immunity and the possibility of Special Advocates were raised.