s47 of the Crime (Sentences) Act 1997 states that certain powers to specify a hospital includes the power to specify a specific hospital unit. This applies when the following orders/directions are made:
Any reference in legislation to "hospital" is then taken to refer to the specified hospital unit instead. This affects the following decisions:
The purpose of the power is to allow the Ministry of Justice to have a say in the level of security in which the patient is detained.
From Ministry of Justice website: