These regulations mirror those proposed by the Kyoto metropolitan government shortly after the Kyoto Animation arson attack.
However, it’s debatable whether or not this would have prevented the Kyoto Animation arson attack, as the arsonist himself suffered severe burns in the attack, which suggests that self-preservation wasn’t a major priority for him, and so avoiding prosecution was also likely something he was unconcerned with.
New law would require documentation of the sort of purchase arsonist made prior to attack.
This prompted gas stations to ask for the rules to be made into official legal requirements instead.