Under the constitution, the states essentially have plenary legislative power to legislate on any subject, whereas the Commonwealth (federal) Parliament may legislate only within the subject areas enumerated under section 51. For example, state parliaments have the power to legislate with respect to education, criminal law and state police, health, transport, and local government, but the Commonwealth Parliament does not have any specific power to legislate in these areas. However, Commonwealth laws prevail over state laws to the extent of the inconsistency. In addition, the Commonwealth has the power to levy income tax which, coupled with the power to make grants to States, has given it the financial means to incentivise States to pursue specific legislative agendas within areas over which the Commonwealth does not have legislative power.