Chapter 1 provides a broader picture of electronic evidence and digitalisation. After an overview of the latest EU digital and security strategies and their basic principles, it analyses specific far-reaching legislative instruments based on new ideas of EU criminal law prevention, reaction and cooperation in the digital age. It then analyses the main right affected by the new approach and instruments – the right to privacy – from a historical perspective and a modern understanding through concepts developed initially by the case law of the US Supreme Court. It addresses the question of what legal boundaries are necessary in the digital age for such a right to still be an effective one. Last, the chapter looks at the aspects of digitalisation in the EU criminal law justice area that pose the most questions when comparing digital cross-border cooperation with classical cross-border cooperation based on mutual recognition. It considers judicial (court) authorisation and its meaning, oversight and extraterritorial application of legislation in that regard.