They realized that if the rioters came down the interior stairs near the lower west terrace entrance, they would attack, from behind, Gonell and other officers who were fending off the crowd at that door.

他们意识到，如果暴徒从靠近低层西阳台入口的内部楼梯下来，他们就会从后面攻击戈内尔和其他在门口挡住人群的警察。