And he kind of comically explained that time after time, what the firemen would say is: they would rush to the scene of the crime; they would look around; if there were no dead policemen, it was OK to go.
そして教授が面白おかしく 説明してくれたのは 何人もの消防士が言うんだそうです 「犯行現場へ急行し 辺りを見回して 死んでいる警官がいなければ大丈夫」