Résumé
Forensic autopsy is an important link in the medicolegal expertise and the foundation and prerequisite to ensure the quality of the medicolegal expertise.Although there is a rarticularity for each au- topsy case,it is the basic requirement to make great effort to do comprehensive and systcmatic autopsy. The limited definition of comprehensive and systemic autopsy is referred to the examination not only in the cranial,thoracic and abdominal cavitv,but also in special sites such as spinal cavity and peripheral nerve if necessary.The general definition of it includes both the aforementioned examination and the collection and preservation of the proper,adequate and reliable samples and material evidences.The common failures are as follows:①The detail of a case is not clear that leads to wrong plan of autopsy.②The blind autopsy be- cause insufficient preparation.③The examination is lopsided as the partial autopsy.④The operation of autopsy is not conformed to the operational standard.⑤A careless observation causes the omission of intop- sy and pathological changes.⑥The examinational description is not accurate and the records and pictures of autopsy are not clear.⑦Material evidences and samples collected are not suitable to show the truth of the autopsied case.