A report on Law, Constitution and Constitutionality

A constitution is an aggregate of fundamental principles or established precedents that constitute the legal basis of a polity, organisation or other type of entity and commonly determine how that entity is to be governed.

Constitutionality is said to be the condition of acting in accordance with an applicable constitution; the status of a law, a procedure, or an act's accordance with the laws or set forth in the applicable constitution.

An act or statute enacted as law either by a national legislature or by a subordinate-level legislature such as that of a state or province may be declared unconstitutional.

The creation of laws themselves may be influenced by a constitution, written or tacit, and the rights encoded therein.

Some countries allow their highest judicial authority to overrule legislation they determine to be unconstitutional.

That is, if there is any conflict between a legal statute and the codified constitution, all or part of the statute can be declared ultra vires by a court, and struck down as unconstitutional.