Because of the quick growth of the tourism industry and increasing numbers of tourists going all over the country, the structure of The Tourist Police at the Headquarters Level was insufficient to operate the mission to support comfortableness and maintain security for the tourists. Therefore, the government upgraded The Tourist Police Headquarters to be The Tourist Police Bureau which was under Central Investigation Bureau as per Royal Decree, dividing the Police Department and The Ministry of Interior (The 17th Issue) in 1991.