刑事侦查及司法审判过程中,常须对一些物证进行化学检验,并提出强有力的科学证据。诸如爆炸现场的炸药;存在死者体内的一些化学品;走私犯携带的毒品;运动员服用的非法药物;食品中毒以及环境污染等。随着科技水平日益提高,违法者的手段也越来越隐蔽,对执法和检察机构提出了新的要求,即充分发挥和利用先进的仪器设 During the criminal investigation and judicial trial, it is often necessary to carry out chemical tests on some evidences and provide strong scientific evidence. Such as explosives at the scene of the explosion; the presence of some chemicals in the deceased; the drugs carried by smugglers; the illicit drugs taken by athletes; and food poisoning and environmental pollution. With the increasing level of science and technology, the means of offenders are also more and more hidden, law enforcement and prosecution agencies put forward new requirements that give full play to and use of advanced equipment