Folks planning to go to the up n coming Comiket will be pleased to know that you will have to wait in line even longer.
Since last month, there has been many Akiba style murder threats aimed at the next Comiket.
The planners have decided to do baggage checks on everybody entering Big Sight.
They state at the official announcement that they will confiscate any dangerous objects indefinitely and if one does not want to give up their dangerous object then they will be refused entry.
Unless they are going to have metal detectors (unlikely) and do body checks then I don't think this measure will help much.
Photo from my previous Comiket article.