My Lords, the simple answer for not including that in the Bill is that we do not think that it is necessary to do so.
The case law exists and has established that in practice the residence measure placed on a TPIM subject could not likely exceed 16 hours a day without constituting an unlawful deprivation of their liberty. However, measures are imposed and tested in the courts on a case-by-case basis, and that is the appropriate way to proceed.