Thailand's Office of the Ombudsman decided today to forward a petition over Prime Minister Prayut Chan-o-cha's (photo) alleged oath-taking fiasco to the constitutional court for final judgment, Xinhua news agency reported.

The Office of the Ombudsman's secretary-general Raksakecha Chaechai said the agency has resolved to forward the petition lodged by Ramkhamhaeng University student Phanuphong Churak against the prime minister and cabinet ministers to the constitutional court.

The student's petition alleged that the prime minister failed to complete the oath message as required by Section 161 of the constitution and charged such shortfall as unconstitutional.

Prayut was alleged to have failed to read out the final phrase of the oath message which says: "(the oath takers) will maintain and abide by the constitution in all aspects."

The prime minister and his cabinet ministers attended the oath-taking ceremony before King Maha Vajiralongkorn in early June.

Prayut repeatedly defended himself, arguing he had completed all established protocols in accordance with the constitution. However, he offered to take sole responsibility and apologised for his cabinet ministers for any trouble caused in the wake of such allegations.

The Office of the Ombudsman secretary-general said that whether or not the prime minister and cabinet ministers might be allowed to continue to work or have their duties suspended rests with the constitutional court decision.

- Bernama