To avoid filibustering and obstruction in the legislature that would stifle the expression of the people's will, referendums can be held without benefit of legal foundation. These referendums need not be binding but can be regarded as "advisory referendums."
為避免「國會杯葛、抵制」而導致人民意見無從表達，因此無法源的公投也應可以成立；而其結果則未必具有絕對的約束力，可稱為「諮詢性公投」。