A purposive interpretation of the five year limit would suggest that the notwithstanding clause can be reinvoked every five years indefinitely. The function of the clause is to give the legislatures and Parliament the last word on what constitutes an acceptable infringement of individual rights. The function of the five year limit is to ensure that an infringement does not remain on the books after the need for it has passed. The result is that the Saskatchewan legislature will have to look at this issue every five years to determine if the infringement is still needed. As long as the legislature believes the need remains, the legislature can reinvoke the notwithstanding clause every five years.