The more developed a legal system becomes, the more society takes responsibility for the discovery, control, and punishment of violent acts.

Low levels of serotonin have been linked with impulsive and irrational behavior, so reducing it could help determine whether self-control and altruistic punishment are affected by it in the same way.

We should take measures from respect of improving system design, defining the qualification of punishment subject etc. to strengthen the control over tax administrative penalty.