Steps were elaborated with HVC (4) to ensure tougher control over the security guards and roof patrols.It was decided to add patrol points around the building perimeter and dead corners on the roof.

• 我们已与HVC(4)进行详细讨论；并制定具体措施；加强对保安人员和楼顶巡视的管理；并决定在大楼外围以及楼顶死角处增设巡视点.