Askin's time in office was marked by a significant increase in public works programs, strong opposition to an increase in Commonwealth powers, laissez-faire economic policies and wide-ranging reforms in laws and regulations such as the Law Reform Commission, the introduction of consumer laws, legal aid, breath-testing of drivers, the liberalisation of liquor laws and the restoration of Postal voting in NSW elections. More controversial changes included the 1967 abolition of Sydney City Council and increased rates of development in Sydney, often at the expense of architectural heritage and historic buildings. This culminated in the 'Green ban' movement of the 1970s led by the Union movement to conserve the heritage of Sydney.