(1) A parole revocation order may be made--(a) whether or not the offender has been called on to appear before the Parole Authority, and(b) whether or not the Parole Authority has held an inquiry.
(2) A parole revocation order takes effect, or is taken to have taken effect, on the date on which it is made or on any earlier date that the Parole Authority thinks fit.
(3) The earliest date on which a parole revocation order resulting from a breach of the obligations of the offender under the parole order may take effect is the date of the first occasion on which it appears to the Parole Authority that the offender failed to comply with the offender's obligations under the parole order.
(4) If an offender is not taken into custody until after the day on which the parole revocation order takes effect, the term of the offender's sentence is, by this subsection, extended by the number of days the person was at large after the order took effect.