From the European Convention on Human Rights[1]:
ARTICLE 8
Right to respect for private and family life
1. Everyone has the right to respect for his private and family
life, his home and his correspondence.
2. There shall be no interference by a public authority with the
exercise of this right except such as is in accordance with the
law and is necessary in a democratic society in the interests of
national security, public safety or the economic well-being of the
country, for the prevention of disorder or crime, for the protection
of health or morals, or for the protection of the rights and freedoms
of others.
So I wonder, what is the legal argument solid enough to justify interfering with everybody's right to privacy?My layman understanding of the usual process is like, we want surveillance over those people and if it seems reasonable a judge might say ok but for a limited time. Watching everyone's communications also seems at odds with the principle of proportionality[2].
[1]https://www.echr.coe.int/documents/d/echr/Convention_ENG
[2]https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:12...