It has been 26 years since the "subway sarin attack" by Aleph, which killed 14 and 6,300 people.
The bereaved families are urging the country to take further steps to pass on the lessons of the case to posterity.
In the subway sarin attack, which targeted commuters indiscriminately, highly poisonous sarin was sown on three lines running in Tokyo, killing 14 people and damaging about 6,300 people.
In a series of incidents by Aleph, 13 people, including former representative Shoko Asahara and former convict on death row Tomitsuo Matsumoto, were executed three years ago.
According to the Public Security Intelligence Agency, several successors to the cult are still active, and "Aleph" is actively recruiting younger generations.
The bereaved family and lawyers visited the Ministry of Justice on the 19th and submitted a request to the Minister of Justice Kamikawa.
In order to convey the background and lessons of the incident to posterity, we are requesting that records left in each ministry and agency, materials in the hands of bereaved families and victims, etc. be aggregated and archived so that many people can see them. I will.
Shizue Takahashi, the representative caretaker of the "Subway Sarin Victims' Association" who lost her husband in the incident, said at the press conference, "It is important to convey the incident and the cult to young people as correct knowledge, and the country I want you to take the initiative in promoting efforts to prevent weathering. "