(UTMB at Galv. Hospital) TDC Officer do not carry weopons in the general population. Gun are only in secure areas of the prison. I have worked with TDC officer for 25 years, security and safety in the hospital is ongoing risk assessment. Every item within arm length of a inmate is a weapon...this includes staff. Inmate plus captived staff equals locked door by TDC Officer. A gun only increases risk. This is the policy of TDC. It equals captive staff equal dead staff.
The inmate has no power by having a captive. 
Mental health admin normaly follow this plan. 
Just do't check the staff parking lot. 