Former BKK Police Chief 'Arrested With Gun' in Japanese Airport By Khaosod English File photo of then-commander of the Bangkok Metropolitan Police Pol.Lt.Gen. Kamronwit Thoopkrachang ® speaking to reporters on 1 March 2013. BANGKOK — The former commander of the Bangkok Metropolitan Police has been detained at an airport in Japan for trying to carry a gun on-board a Bangkok-bound aircraft, a police spokesperson said. Pol.Lt.Gen. Kamronwit Thoopkrachang was detained yesterday evening after sec