evidence: The Regulation defines the term "electronic evidence" as subscriber data, traffic data or content data stored by or on behalf of a service provider, in an electronic form,18 i.e., emails, text messages or content from messaging apps, audio-visual content, or information about a user's online account. These categories of data correspond with the EU acquis19 and established jurisprudence of the Court of Justice of the EU, as well as with the types of data used in the Member States and with international instruments.20 [...] The adoption of the EU e-evidence rules is an important step forward towards facilitating effective cross-border cooperation in criminal matters, which, given the borderless dimension of criminal activity, is sure to become even more pressing over the next several years and decades. With the costs stemming from the (mis-)use of digital technologies for the purpose of committing crimes alone are expected to rise from 8.4 trillion US dollars in 2022 to 10.5 trillion US dollars by 2025,125 it is clear that the fight against this growing phenomenon should be given a high priority at all levels. The newly adopted rules require all stakeholders – from judicial and law enforcement authorities to service providers and defence lawyers – to undertake all necessary efforts to ensure their timely and accurate implementation as well as their correct application in practice. The mechanism established under the e-evidence rules relies fundamentally on the principle of mutual trust among the EU Member States and a presumption of their compliance with Union law, the rule of law, and fundamental rights and values.