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1、,Electric mark and electrocution death,电流斑和电击死,characteristic,Case analysis,Electric mark case,Electric mark,Content,reason,Electrocution death,characteristic,Electric mark,Electric marks generally have an irregularly rounded shape,and are oval0.5to1cmindiameter.They shapelikeanCaldera,scarhardanddr
2、y and have clearboundarieswiththesurroundingtissues,reason,Case analysis,characteristic,Electric mark,Electrical mark is one of the crucial morphological findings on the body of a person who received a fatal electric shock and it is often the evidence of contact between the body and electricity,andc
3、ontact area is small.,reason,Case analysis,characteristic,Electric mark case,reason,某地从河中捞上一具无名男尸，尸体上身罩着麻袋,麻袋内装有17.5kg重的石头和死者的书包。经尸表检验，在手上发现一些创口，其中右手食指第三指节处有一呈圆形，直径5-10mm，色灰白或灰黄，质坚硬、干燥，中央凹陷，周围稍隆起，边缘钝圆，形似火山口，外周可有充血环，与周围组织分界清楚的创口。,Electric mark case,Case analysis,characteristic,Case analysis,reason,圆形
4、，直径5-10mm，色灰白或灰黄，质坚硬、干燥，中央凹陷，周围稍隆起，边缘钝圆，形似火山口，外周可有充血环，与周围组织分界清楚的创口。,Case analysis,某地从河中捞上一具无名男尸，尸体上身罩着麻袋,麻袋内装有17.5kg重的石头和死者的书包。经尸表检验，在手上发现一些创口，其中右手食指第三指节处有一呈,A typical electric mark.In cases where the electrical mark on the skin is absent,the cause of death is often electrocution,characteristic,Elec
5、tric mark case,Case analysis,On the following situationtheelectrocutiondeathisvery difficult toformatypical electrical mark:(1)When the skin is moisture.(2power supply is contactwiththeskin closely(3)Electrocution when voltage is under 220-volt(4)thereis some dirtatthecurrententryorexitontheskin.(5)
6、The area that currentcontactwiththeskinislarge.,reason,Case analysis,死者被发现时是在河里，皮肤潮湿，不太可能形成如此典型的电流斑，只能说明很可能生前就已经被电击了,characteristic,Electric mark case,Case analysis,How to Identifyofelectrical mark before andafter death:非特异性酷酶Non一PsecificEsteres(N.S.E)组织化学方法生前与死后短时间内的电损伤皮肤胶原纤维上NSE活性有显著差别P(0.05),电击后存
7、活时间越长,电流斑皮肤周围的酷酶着色反应越深,范围越宽。光学显微镜下观察电流斑死后电流斑无弹力纤维收缩现象，真皮层无充血、坏死,reason,Case analysis,参考文献：生前与死后电击伤皮肤NSE活性的观察_竞花兰,characteristic,Electric mark case,reason,某地从河中捞上一具无名男尸，尸体上身罩着麻袋,麻袋内装有17.5kg重的石头和死者的书包。经尸表检验，在手上发现一些创口，其中右手食指第三指节处有一呈圆形，直径5-10mm，色灰白或灰黄，质坚硬、干燥，中央凹陷，周围稍隆起，边缘钝圆，形似火山口，外周可,Electric mark case,
8、Case analysis,有充血环，与周围组织分界清楚的创口。,说明是生前电流斑,characteristic,Electrocution death 电击死,reason,Electrocution is death caused by electric shock,electric current passing through the body.,Case analysis,Electrocution death,characteristic,Electrocution death,reason,whenpeople dead by electrocution,we canusuall
9、yseethefollowingfeatures,Case analysis,Electrocution death,Electric mark 电流斑Electricalburn 电烧伤Electric metallization of skin 皮肤金属化Electric Shockveins 电击纹Internalchanges 内部变化osseous pearls 骨珍珠,检验电击死尸体时，我们通常可以这些特征,characteristic,Electrocution death,reason,Case analysis,Electrocution death,Electric met
10、allization of skin皮肤金属化,Electric Shockveins电击纹,characteristic,Electrocution death,reason,Case analysis,Electrocution death,Electricalburn,osseous pearls骨珍珠,characteristic,How to identify electrocution death,reason,Case analysis,Electrocution death,Exclude of other causes of death combined with crime scene the autopsy found electrocution death feature 尸检发现电击死的特征Typicalelectric markcan bean importantbasisofconfirmeddeathby electrocution，butwithoutelectric markwe canteliminatethepossibilityofelectrocution典型电流斑可以确认电击死的重要依据，但是没有电流斑也不能排除电击死的可能,Thank you！,
