During the crime offence period, the criminal suspects swept the floor for theft from top to below by climbing the external wall and breaking the window fence.
作案过程中犯罪嫌疑人往往以一幢楼为单位，采用外墙攀爬，撬断防盗窗栅栏的方式从上至下“扫楼式”盗窃。