Anti-social Behaviour, Crime and Policing Act 2014
Part 10 relates to forced marriage. Preamble: "An Act to make provision about anti-social behaviour, crime and disorder, including provision about recovery of possession of dwelling-houses; to make provision amending the Dangerous Dogs Act 1991, the Police Act 1997, Schedules 7 and 8 to the Terrorism Act 2000, the Extradition Act 2003 and Part 3 of the Police Reform and Social Responsibility Act 2011; to make provision about firearms, about sexual harm and violence and about forced marriage; to make provision about the police, the Independent Police Complaints Commission and the Serious Fraud Office; to make provision about invalid travel documents; to make provision about criminal justice and court fees; and for connected purposes."
External link
If the link above does not work (sometimes a problem with the Legislaton.gov.uk website) then try this or this