Tex. Const. art. I, § 10

In all criminal prosecutions the accused shall hav a speedy public trial by an impartial jury. He shall have the right to demand the nature and cause of the accusation against him, and to have a copy thereof. He shall not be compelled to give evidence against himself and shall have the right of being heard by himself or counsel, or both, shall be confronted by the witnesses against him and shall have compulsory process for obtaining witnesses in his favor, except that when the witness resides out of the State and the offense charged is a violation of any of the anti-trust laws of this State, the defendant and the State shall have the right to produce and have the evidence admitted by deposition, under such rules and laws as the Legislature may hereafter provide; and no person shall be held to answer for a criminal offense. unless on an indictment of a grand jury, except in cases in which the punishment is by fine or imprisonment, otherwise than in the penetentiary, in cases of impeachment, and in cases arising in the army or navy, or in the militia, when in actual service in time of war or public danger.