Royal Thai Police (RTP) first came into existence in the year 1455, over 500 years ago. However, the modernization of the RTP system came during the reign of King Rama IV, designed by an Englishman named Captain Joseph Byrd Ames. Captain Ames was the Captain of an English vessel at the time but was given the responsibility for establishing the first uniform police unit in Thailand. Ames, himself, was appointed the first uniform police commander by King Rama IV.
1. Director-General 2. Deputy Director-General 3. Assistant Director-General 4. Commissioner 5. Deputy Commissioner 6. Commander 7. Deputy Commander 8. Superintendent 9. Deputy Superintendent 10. Inspector 11. Sub-Inspector
1. Group Leader
2. Patrol Officer
Police General Police Lieutenant General Police Lieutenant General Police Major General Police Major General Police Special Colonel Police Colonel Police Lieutenant Colonel Police Lieutenant Colonel or Police Major Police Captain or Police Lieutenant or Police Sub-Lieutenant
Police Senior Sergeant Major Police Sergeant Major Police Sergeant Police Corporal Police Lance Corporal Police Constable
For more please go Royal Thai Police official website