Part V Counter-terrorist Powers
Parking
50 Duration of authorisation.
1
An authorisation under section 48 has effect, subject to subsections (2) and (3), during the period specified in the authorisation.
2
The period specified shall not exceed 28 days.
3
An authorisation may be renewed in writing by the person who gave it or by a person who could have given it; and subsections (1) and (2) shall apply as if a new authorisation were given on each occasion on which the authorisation is renewed.