Whether the complainant's access to bank-records file materials could be restricted by a copying ban and on-site inspection only.
No sufficient private secrecy or public interest justified prohibiting copies or limiting inspection to the prosecutor's premises.
File access is the rule; restrictions are exceptional and must be necessary and proportionate. Bank secrecy does not block lawful criminal procedure measures or the parties' procedural rights, and no qualifying abuse of rights or secrecy interest was shown.