The four security members include a divisional police commander, a senior commissioner, a senior peace officer, and a peace officer, according to a statement from the General Directorate of National Security (DGSN).

He then became a superintendent in the Welsh Constabulary, but resigned after a few months probably because he was not promoted chief constable.

For his role as a former Texas Ranger peace officer, Duvall was trained in the use of Walker revolvers by the Texas marksman Joe Bowman.