International Conventions exist that address child marriages and protection.
01. UN Convention on the Rights of the Child
United Nations has defined a child (human under the age of 18) and also has laid down his rights in this human rights treaty.
To find out more, visit: http://www.ohchr.org/en/professionalinterest/pages/crc.aspx
02. Committee on the Elimination of Discrimination against Women (CEDAW)
CEDAW is an international treaty adopted by the United Nations Assembly that serves as a Bill of Rights for women.
To find out more, visit: http://www.un.org/womenwatch/daw/cedaw/
03. Human Rights Violations- No Slavery
Human Rights Act protects human beings from slavery and oppression.
To find out more, visit: http://www.humanrights.com/what-are-human-rights/violations-of-human-rights/slavery-and-torture.html