In the event of interference with a lawyer's data, it is incumbent on the signatory states of the European Convention on Human Rights to protect the lawyer's professional secrecy with special procedural safeguards of the level required by the rule of law, even if the lawyer has voluntarily handed over his data to the authorities or is not registered with a bar association in the state concerned.
Comment ECHR, June 6, 2024,nos. 36559/19 and36570/19, Bersheda and Rybolovlev v/Monaco
https://www.labase-lextenso.fr/gazette-du-palais/GPL467k4
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