The Michael Unit opened in September 1987. Texas officials referred to the facility as "model for the future." Robert Perkinson, author of Texas Tough: The Rise of America's Prison Empire, described Michael as "one of the meanest lockups" in Texas.
Operations
Michael was one of the first prisons to no longer use the "telephone-pole" layout, which has central pickets with dead-end cell blocks extending from them. The telephone-pole layout, while inexpensive to build, is difficult to police without "building tenders" (convicts paid to police other convicts). Instead, Michael uses a modular pod design, which allows for riot control and visual surveillance. Most pods have double-bunk, reinforced concrete cells with security features such as slit windows and bolted-down metal toilets. Some pods have dormitories. Michael was one of several new prisons to have the ability to have many prisoners in extended lockdowns. State officials said that Michael's features allowing for extended lockdowns of prisoners were modeled on the United States Penitentiary, Marion.
12Rhor, Monica. "Serial killer wrestles with his crimes." Fox News. Sunday June 8, 2008. Retrieved on December 12, 2010. "Henley, who turned 52 in May, sits behind a glass divider in the visiting room at the Michael Unit, a Texas prison set amid cow pastures and sprawling ranches about an hour south of Dallas."