Revised Laws of Saint Lucia (2021)

868.   Previous acquittal or conviction, a bar to charge with additions tending to increase punishment

Where an indictment charges substantially the same offence as that charged in the indictment on which the accused person was given in charge on a previous trial, but adds a statement of intention or circumstances of aggravation tending, if proved, to increase the punishment, the previous acquittal or conviction shall be a bar to the subsequent indictment.