Despite the change to democracy, the King was still Head of State and succession of the throne continued as a permanent institution. Under the constitution, succession of the throne followed the Law of succession of 1924 with the consent of House of Representatives. The constitution limited the powers of the King somewhat. In conducting state affairs, there had to be a member of the People's Committee to sign receipt of royal commands with the consent of the People's Committee. A newly-established institution was the House of Representatives which possessed legislative power. Legislation became effective once the King had signed it.

Moreover, the House of Representatives had the power to control the country's affairs and to dismiss members of the People's Committee or any government officers, indicating their full executive authority. The House of Representatives consisted of members of the House, which varied according to the different periods as follows:

First period

The first period began from the first day of constitutional government to the day when members of House of Representatives took over their positions in the second period. The military committee defending the capital on behalf of the People's Party appointed 7 temporary representatives to be members of House of Representatives.

Second period

The Second Period began 6 months later or when the administration of the country returned to normal. Members of parliament consisted of 2 groups: (1) members by public election and (2) members appointed from the first period which were to have the same number of people as group (1). In case (2) outnumbered (1), only some members of the second group would be selected to renew their positions and in case group (2) was outumbered by (1), some additional members of (2) would be selected.

Third period

The third period was to begin when over half of the population had passed the final primary school examination but it had to be no later than 10 years following from the first day of promulgation of the constitution. The House of Representatives was to consist only of representatives by public election without any of the second group of appointed members. After the promulgation of constitution, first period members were appointed and later second period members were elected by subdistrict representatives who were elected by the people. This was therefore an indirect election. The constitution did not last long enough to have third period members because of the promulgation of the permanent constitution on 10 December 1932 which terminated government under the provisional constitution. The House of Representatives elected People's Committee members from the House's representatives. The People's Committee's term was equal to that of the House of Representatives but the People's Committee did not get involved in controlling ministries since they were still controlled by ministers as in the absolute monarchy period. The appointment and dismissal of ministers was under the King's power on the recommendation of the People's Committee. Ministers were permanent government officials not political ones, and so was the People's Committee which were considered officers to the House of Representatives who controlled the administration on behalf of the Parliament.

As a result, during the early period of administrative change, the House of Representatives was the most powerful political institution. In terms of judicial administration, judicial power remained in the hands of existing Courts of Justice. Trials and judgements proceeded as before.