illegal. Detonation bomb, commonly known as flash bomb, will give off a strong flash and a loud noise as high as 18 decibels after being thrown, causing people to temporarily lose their hearing and vision within half an hour, causing non-fatal injuries, which is illegal ammunition. Article 128 of the Criminal Law of the People's Republic of China stipulates that illegal possession and possession of guns and ammunition will be punished with fixed-term imprisonment of not more than three years, criminal detention or public surveillance.