To locate a current prisoner and find information on where they are located, click on either.. The martinez detention facility (mdf) opened in 1981 and is one of three detention facilities operated by the contra costa county office of the sheriff.
But as hype about the technology has infiltrated prison yards and cellblocks, many inmates are eager to try it out.. A prison or penitentiary holds people for longer periods of time, such as many years, and is operated by a state or federal government.