 A new law was passed by the Jamaican House of Assembly to thwart the intention behind the Act.This Jamaican legislation prevented emancipation by compelling former slaves to work in an apprenticeship scheme under which the proceeds of their work were to be used to buy out inflated apprenticeship values of £60, £80, or £90 or higher, as set by their former owners.Knibb and others opposed these abuses, so that Parliament brought forward the date for full emancipation from 1840 to 1838.