This article explores some of the most shocking crimes in Japan's history, including the 1995 sarin gas attack by the Aum Shinrikyo cult, the 1997 Kobe Child Murders, the 2004 Sasebo Slashing Incident, the 2008 Murayama Bank Heist and the 2016 Sagamihara Massacre. Despite Japan having a low crime rate overall, these incidents have highlighted how easily someone can commit such heinous acts if not properly monitored or supervised. It is hoped that through continued efforts by law enforcement and social welfare organisations alike, such tragedies can be prevented from occurring again within Japanese borders.