Choosing the right policy to rethink the criminal process is crucial for adapting and improving national security strategies to effectively counter and prevent new forms of crime that have evolved as a result of the impact of digitalisation. The purpose of the study was to form a modern scientific-methodological approach to choosing the optimal policy for adapting the criminal process to modern digitalisation factors. The key research methods were multi-criteria evaluation of alternatives, comparison of options by preference, and analysis using expert assessments. The innovation of the obtained research results was identified through an improved scientific-methodological approach to improving the effectiveness of the criminal process when working with electronic evidence. This approach differs from the existing ones due to its focus on the formation of alternative options in the choice of adaptation methods, providing an opportunity to choose the one that best meets the requirements of modern digitalisation. This approach focuses on flexibility and adaptability in developing procedures that allow effective interaction with electronic evidence while ensuring the high quality and speed of criminal proceedings. Due to the conducted study, it was established that for Ukraine, especially in the conditions of intensive digitalisation, the most effective is a flexible approach that involves adapting and rethinking traditional methods of criminal proceedings, considering the changing conditions and challenges posed by the digital era. The practical importance of the study results is expressed not only in the possibility of using them to develop strategies that will help the country adapt to the challenges of digitalisation but also in their meaningfulness for improving the effectiveness of responding to modern threats, such as cybercrime and other new forms of crime. These results can be used to develop comprehensive approaches to combating cybercrime, including improving legislative norms, improving methods for collecting and analysing electronic evidence, and improving the skills of law enforcement officers