'''Judicial review''' is a legal term to describe the ability of the courts to subject executive and legislative actions to review (and possible invalidation). In some countries, only executive powers can be judicially reviewed by a courts - in the United Kingdom and New Zealand for instance, the doctrine of parliamentary supremacy means that legislation cannot be set aside. In many countries however, notably in the US, the courts play a role in determining the constitutionality of legislation.
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'''Judicial review''' is a legal term to describe the ability of the courts to subject executive and legislative actions to review (and possible invalidation). In this light, judicial review amounts only to a negative power.
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In some countries, only executive powers can be judicially reviewed by a courts - in the United Kingdom and New Zealand for instance, the doctrine of parliamentary supremacy means that legislation cannot be set aside. In many countries however, notably in the US, the courts play a role in determining the constitutionality of legislation.