A cross-jurisdictional analysis of the rapidly evolving case law on SkyECC, EncroChat and ANOM evidence. Courts across Europe and beyond are increasingly scrutinising mass interception, evidentiary integrity and fair trial guarantees. With key proceedings pending before the ECtHR and CJEU, the legal foundations of encrypted evidence are facing a decisive global reckoning.

The ECtHR has communicated new SkyECC cases from Norway, raising fundamental questions on fair trial rights under Article 6 ECHR. Together with Silgir v Germany (EncroChat) and ongoing ANOM proceedings, the Court is shaping a European framework for the use of encrypted communication evidence in cross-border criminal cases.

A former UDEF chief alleges that Spanish police systematically concealed the true origin of encrypted communications evidence from ANOM and SkyECC by using “parallel construction”. The article explores the implications for fair trial rights, judicial scrutiny and the admissibility of digital evidence across Europe.

The Basel Court of Appeal has ruled SkyECC evidence inadmissible in Swiss proceedings, citing violations of territorial sovereignty, lack of individual suspicion, ordre public concerns, and incomplete data disclosure. The judgment marks a significant shift in how courts assess cross-border digital surveillance and strengthens defence rights in international criminal cases.