The latter group, including Joseph Sturge and many others, publicly campaigned throughout Britain. The idea was to engender public pressure for a new parliamentary act to outlaw slavery, rather than continue the gradualism of Whitehall's negotiations, mainly with colonial governments. In 1831 George Stephen and Joseph Sturge formed a ginger group within the Anti-Slavery Society, the Agency Committee, to campaign for this new act of Parliament. This campaign, and public pressure, led to the Slavery Abolition Act of 1833, though it contained compromises which they disliked.