I think we need to investigate whether it went according to the manual
Safety management manual
This manual includes the head of the central administrative agency, the head of the local government, and
It shall be applied to the following regional festivals held by the private sector, etc.:
– A local festival that is expected to attract more than 1,000 instantaneous visitors during the festival
– Local festivals held in mountains or water surface, etc
– Local festivals where the materials used are explosive substances such as firecrackers, petroleum, combustible gases, etc
You can go to the link address and download the PDF file
httpswwwmoisgokrfrtbbstype001commonSelectBoardArticledo;jsessionid=FdKFh FGmqjACoKhCyVu-FhVnode40bbsId=BBSMSTR_000000000015nttId=83280#none 
