卧底侦查特征性分析

任意侦查与强制侦查的划分标准、卧底侦查遵循的比例原则及卧底侦查的立法与实践都显示出卧底侦查的强制性特点。而卧底侦查人员身份的隐秘与卧底侦查方式的非公开性决定了卧底侦查的隐秘性特征。从卧底侦查启动与犯罪的同步性上看，卧底侦查具有主动性特征。而卧底侦查过程中对其他侦查手段的综合性运用则彰显出卧底侦查手段的融合性特点。卧底侦查客观环境的复杂性与卧底警察在卧底过程中的被动性决定了卧底侦查行动终止的不可预期性，即终止具有随机性特点。

Analysis of Features of Uncover Investigation

Undercover investigation has the mandatory features because of the standards of random investigation and mandatory investigation, the principle of proportionality, and the legislation and practice of undercover investigation. Undercover investigation has the features of secrecy because of the secret identity of undercover investigators and non- openness. Undercover investigation is used with the crime happening at the same time. Undercover investigation can use other techniques in investigation, which manifests the feature of comprehensive approaches. The complex environment and the passivity determine that the termination of undercover investigation is unpredictahle.