Sec. 38.02. FAILURE TO IDENTIFY. (a) A person commits an offense if he intentionally refuses to give his name, residence address, or date of birth to a peace officer who has lawfully arrested the person and requested the information.
(b) A person commits an offense if he intentionally gives a false or fictitious name, residence address, or date of birth to a peace officer who has:
(1) lawfully arrested the person;
(2) lawfully detained the person; or
(3) requested the information from a person that the peace officer has good cause to believe is a witness to a criminal offense.
(b).(3) is fictitious info for a witness. It does not state that a refusal to give info is an offense for a witness.