In any state where the rule of law is applied, criminal justice serves to guarantee the efficiency and legitimacy of liability and all legally sanctioned coercive measures. Its purpose is also to eliminate, insofar as is possible, any arbitrariness and dishonesty arising in the course of criminal prosecution. Thus, the rules underpinning criminal law and procedure, formulated precisely, harmonized, and based on the principles of law, are the theoretical basis for the attainment of those objectives. In reality, however, the activity of the legislator in drafting new laws and slowed progress in eliminating outdated and unjustified norms creates a situation where the wording of legal codes gradually loses their systematic and consistent character. In recent years, the phenomenon of over-criminalization and statutory ambiguity has attracted an enormous amount of research interest in criminal science. A number of legal concepts and principles are used to discipline the legislature, and thereby allow the courts to apply the law prudently and with great caution, within the limits of their constitutional powers, and in accordance with local legal traditions. This paper presents those legal principles followed by the Lithuanian courts to ensure the proportionate application of substantive criminal law and special investigative techniques, inter alia secret surveillance, thereby offsetting the impact of poorly drafted laws on human rights.

在任何适用法治的国家，刑事司法都有助于保证责任和所有法律认可的强制措施的效率和合法性。其目的还在于尽可能消除在刑事起诉过程中出现的任何任意性和不诚实行为。因此，以法律原则为基础、精确制定、协调一致的刑法和程序规则，是实现这些目标的理论基础。然而，实际上，立法者在起草新法律方面的活动以及在消除过时和不合理的规范方面进展缓慢，造成了法律法规措辞逐渐失去其系统性和一致性的情况。最近几年，过度刑事化和法律模糊的现象引起了刑事科学的大量研究兴趣。许多法律概念和原则被用来对立法机关进行纪律处分，从而使法院能够在其宪法权力范围内并根据当地法律传统审慎谨慎地适用法律。本文介绍了立陶宛法院遵循的法律原则，以确保实体刑法和特殊侦查技术的适当适用，并符合当地法律传统。本文介绍了立陶宛法院遵循的法律原则，以确保实体刑法和特殊侦查技术的适当适用，并符合当地法律传统。本文介绍了立陶宛法院遵循的法律原则，以确保实体刑法和特殊侦查技术的适当适用，尤其是秘密监视，从而抵消起草不当的法律对人权的影响。