日本国憲法第37条
In all criminal cases the accused shall enjoy the right to a speedy and public trial by an impartial tribunal.
He shall be permitted full opportunity to cross-examine all witnesses, and he shall have the right of compulsory process for obtaining witnesses on his behalf at public expense.
At all times the accused shall have the assistance of competent counsel who shall, if the accused be unable to secure the same by his own efforts, be assigned to his use by the government.
「憲法改正草案要綱」、国立国会図書館「日本国憲法の誕生」。