Methods of monitoring compliance with restriction of liberty orders and restricted movement requirements
4. Compliance of an offender with the requirements of a restriction of liberty order or a restricted movement requirement may be monitored by the following methods:—
(a)radio and electronic monitoring of an offender’s presence at or absence from a place of curfew by means of a regular radio signal transmitted by a transmitter device attached to the offender with the transmitted signal received by a radio receiving and monitoring device located at the place of curfew, with the relevant information received and processed by said radio receiving and monitoring device periodically passed by telephone line to a central computer at a monitoring centre;
(b)radio and electronic monitoring of an offender’s presence at or absence from a place of curfew by a mobile receiver which receives radio signals transmitted by a transmitter device attached to the offender;
(c)monitoring the offender’s whereabouts by periodic telephone calls to the offender at a particular location with secondary verification of the identity of the offender by verification against stored personal details; and
(d)monitoring the offender’s whereabouts by random visits to the offender’s place of curfew during periods of restriction,
but the methods of monitoring referred to in (b), (c) or (d) shall not be used unless it is not reasonably practicable to use the method described in (a) except that the method referred to in (c) may be used as a back-up method of monitoring where method (a) is also being used.