Honest question: What about in issues of court cases? As in, if an Austrian employee is comitting an international crime of bribery and is under investigation,

Honest question: What about in issues of court cases? As in, if an Austrian employee is comitting an international crime of bribery and is under investigation, does that forbid the courts or employer from ever reading the internet traffic? Granted, I'm setting up a 'higher bar' to clear than an internal, company-exclusive issue, but if we're talking scope and priorties of laws, I'm curious how they might be reconciled in the situation you present.