1案例资料1.1简要案情及现场勘查死者,杨某,男25岁。2012年6月6日16时许,其爬上一高压电线杆顶掏鸟窝时,触高压电身亡。现场为一“T”形路口,路口西南角路面上有一头颅(图1),路面外草地上有一金属电线杆(高约9m),表面见自上而下流注状血迹,水泥基座上见大片滴落状血 1 Case Information 1.1 Brief Case and Site Investigation Dead, Yang, male 25 years old. At 6 pm on June 6, 2012, when he climbed the top of a high-voltage power pole, he touched the high voltage and died. The scene is a “T” shaped junction with a head on the road surface at the southwest corner of the road (Figure 1). There is a metal pole (about 9m high) on the grass outside the pavement. See a large drop of blood