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.
他稍带诙谐地解释说， 消防员一次又一次地说， 他们会赶到犯罪现场。他们会检查四周。 如果没有警察死亡，那就万事大吉。