sentences:  On April 14, 2010, the Lieutenant Governor of Nova Scotia, Mayann Francis, on the advice of her premier, invoked the Royal Prerogative and granted Viola Desmond a posthumous free pardon, the first such to be granted in Canada.The free pardon, an extraordinary remedy granted under the Royal Prerogative of Mercy only in the rarest of circumstances and the first one granted posthumously, differs from a simple pardon in that it is based on innocence and recognizes that a conviction was in error.The government of Nova Scotia also apologised.