That bottle became the smoking gun in a case on trial in Manhattan federal court in which lawyers and witnesses are duty bound not to drink the evidence.

FORBES: Bill Koch's Bad Trip With Counterfeit Wine Is Cautionary Tale For Collectors

The World Conference on Human Rights reaffirms that States are duty-bound, as stipulated in the Universal Declaration of Human Rights and the International Covenant on Economic, Social and Cultural Rights and in other international human rights instruments, to ensure that education is aimed at strengthening the respect of human rights and fundamental freedoms.

UNESCO: Vienna Declaration and Programme of Action

Clinton said the U.S. is duty-bound to allow Mexican truckers to operate in the U.S., as long as they do so safely.

CNN: Drugs, Immigration Top Clinton's Mexican Agenda

If assets fall below liabilities then employers are duty bound to prop up ailing final salary schemes in order to ensure that members are paid their benefits in full.

BBC: Pensions explained: Final salary schemes

Of course, you feel duty bound to go along and support your team-mates, but I hated sitting in the stands, watching, knowing there was nothing I could do to affect what was happening out on the pitch.

BBC: The James Beattie column

Your stories reminded me that everyday America's greatness is bound up in the lives of the American people -- your hard work, your devotion to duty, your love for your children, and your determination to keep going, often in the face of enormous obstacles.

CNN: Clinton: It is time to take back the country we love

Few are likely to accept that they are duty-bound to follow opinion polls, even if their instinct for self-preservation may drive them in that direction.

ECONOMIST: The last mile

The presidential statement said Afghan forces were "duty bound" to put a stop to such behaviour, and urged local people to co-operate in bringing them to justice.

BBC: File image of US soldier in Wardak province, Afghanistan