The Law Department is an advisory department for all the Departments of Government of Sindh. The main functions of the Law Department are to defend Government functionaries of the Province of Sindh in the cases filed for and against them before the Lower as well as Superior Courts.

Ministry of Law is the oldest limb of the Government of Pakistan dating back to 1833 when the Charter Act 1833 enacted by the British Parliament. The said Act vested for the first time legislative power in a single authority, namely the Governor General in Council. By virtue of this authority and the authority vested under him under section 22 of the Pakistan Councils Act 1861 the Governor General in Council enacted laws for the country from 1834 to 1920.