Comparative Review of the Constitutions of 1906 and Islamic Republic; the Possibility or Impossibility of Review some of the Principles of the Constitution Adopted in 1989

The present article describes the evolution of the constitution in Iran; seeking to answer this question, what was the principle of revising the constitution of 1906 and is the constitution of Islamic Republic? And if we want to review the possibility of revising some of the current constitutional principles (approved in 1989), what would be a significant difference to this possibility or impossibility of reviewing? The findings of the research indicate that in the Constitution of 1906, due to the prevention of the return of tyranny and in the constitution (approved in 1979) of the Islamic Republic, due to the initial conditions of the revolution and the protection of the constitution against the post-revolutionary political storms, Revision of any of the above fundamental laws is not considered. However, the Constitution of 1906 was reviewed several times by various interpretations. However, in the Islamic Republic of Iran, after the constitutional amendments in 1989, the review principle (art. 177) has been incorporated into constitutional provisions, along with some other changes. It also seems that in the review of the constitution of 1989 it is possible to refrain from or refuse to review some of the issues of disagreement, such as the presidential or parliamentary system, the Expediency Council, the city councils, the presidential conditions, and so on. To answer the paper’s question, the comparative-analytical method and the library study technique were used.