"Ways and Means" is not an Act of Parliament - it refers to the provision of revenue to meet national expenditure and to forward the objectives of economic policy, principally provided by the imposition of taxation.
http://en.wikipedia.org/wiki/Committee_of_Ways _and_Means
However "The Ways and Means Act" is a fictional statute quoted by the police or security forces to justify their actions
vis-�-vis "if you have a way to get things done, the means - legal or not - are justified".