Campos v. State

OPINION

FEDERICI, Justice.

Appellant (hereafter Campos), a penitentiary inmate, was a defense witness in the trial of Faustino Castillo, Jr., who was charged with escape from the penitentiary. Campos and other defense witnesses had prior felony convictions. The State, for impeachment purposes, wished to cross-examine Campos regarding the prior felony convictions.

Campos was called as a witness. The State agreed not to use any testimony elicited during cross-examination in any subsequent habitual offender prosecution of him. The trial court advised Campos of the terms of this verbal agreement,…