As an (unrelated) example the UK and the convention on the right of the child:

http://en.wikipedia.org/wiki/Convention_on_the_Rights_of_the_Child#United_Kingdom

"The United Kingdom ratified the Convention on 16 December 1991, with several declarations and reservations, and made its first report to the Committee on the Rights of the Child in January 1995. Concerns raised by the Committee included the growth in child poverty and inequality, the extent of violence towards children, the use of custody for young offenders, the low age of criminal responsibility, and the lack of opportunities for children and young people to express views. The 2002 report of the Committee expressed similar concerns, including the welfare of children in custody, unequal treatment of asylum seekers, and the negative impact of poverty on children's rights. In September 2008 the UK government decided to give up its reservations and agree to the Convention in these respects"