Our clients have directed us in the circumstances to petition His Excellency the President of the Republic to exercise his powers of prerogative of mercy under Article 72 of the Constitution of Ghana». (ghanapoliticsonline.com)
As an aspect of the sovereignty of Parliament it has been established (during the original English Civil War) that the Government of the day can not by exercise of prerogative powers override legislation enacted by Parliament. (wedlakebell.com)
In 1980, after the courts had dismissed their appeals, the Home Secretary, William Whitelaw, used the Royal prerogative of mercy to free David Cooper and Michael McMahon from their imprisonment, both having been convicted of murder on poor evidence. (en.wikipedia.org)