Questione giuridica chiave
Whether the tax assessments had to be suspended until the pending criminal proceedings ended
Decisione estratta
No constitutional or treaty right required suspension of the ordinary tax assessment proceedings.
Motivazione estratta
The privilege against self-incrimination does not extinguish cooperation duties in separate tax proceedings; any protection concerns are addressed, if at all, by evidentiary rules in the criminal case. The legislature later confirmed this approach in tax statutes.