only to interpreting a statute "expounded according to the intent of the Parliament that made it; and that intention has to be found by an examination of the language used in the statute as a whole". There was to be no reading in of implications by reference to the presumed intentions of the framers. As a result, the constitution is no longer read in a way which attempts to preserve the power of the states. Broad interpretation of Commonwealth powers Even before the Engineer's case, a line of judicial reasoning asserted that Commonwealth powers should be interpreted broadly rather than narrowly wherever possible. After Engineers, this approach was reinforced. For example, Section 109, regarding inconsistency between Commonwealth and State laws, was broadly interpreted. Commonwealth law prevails not only where inconsistent obligations are imposed, but where Commonwealth legislation evinces an intention to "cover the field" by being the whole law on a particular subject. The Commonwealth can "manufacture" inconsistency by expressly stating that its legislation is intended to cover the field. However, an issue that was raised, without being conclusively resolved, in the Workplace Relations Challenge was whether the Commonwealth can "clear the field" by stating an intention that State laws are not to apply even if the Commonwealth does not enact other laws in their place. The Commonwealth can only legislate with respect to an enumerated head of power, This does not mean that the law must be solely, or even predominantly, directed at that head of power. As long as it can be "fairly characterized" as a law with respect to an enumerated power, it is irrelevant that it could also be categorised as a law regarding some other subject matter. Likewise, Parliament's motivation in passing the law is irrelevant. An example is environmental legislation. The Constitution does not provide the Commonwealth Parliament with any power to control the environment or its use. Nonetheless, a very broad-ranging environmental protection Act could be passed relying on a combination of powers such as interstate and international trade, corporations, taxation, foreign affairs and so on. The law can be supported by those powers although Parliament intended it to be an 'environmental law'. Particularly in the last two decades, many Acts of very wide-ranging effect have been passed on just these bases, in fields as diverse as environment protection, privacy, and anti-discrimination, fields in which the Commonwealth has no direct power. Fiscal imbalance