随着科学技术水平的不断提升,许多犯罪行为越来越职业化、智能化、隐蔽化,不仅造成的社会危害日益严重,而且难以侦破案件。秘密侦查能够有效的获取犯罪证据、打击新型犯罪,因此我国确实有必要对秘密侦查进行法律上的规定和制约。 With the continuous improvement of science and technology, many criminal acts have become more and more professional, intelligent and concealed, which has not only caused the increasingly serious social harm but also made it hard to detect cases. The secret investigation can effectively obtain the criminal evidence and crack down on the new crime. Therefore, it is really necessary for our country to make the legal regulation and restriction on the secret investigation.