10.—(1) The powers in regulations 4, 5 and 8 include powers to impose a restriction or requirement in relation to a group of persons, including a special restriction or requirement.
(2) For those purposes those regulations have effect as follows.
(3) In regulation 4—
(a)in paragraph (2), references to P are to each person in the group;
(b)in paragraph (3), references to P are to each person in the group who has arrived on the same aircraft, ship or train and left the same area;
(c)in paragraph (1) (insofar as it relates to those paragraphs), the reference to “a person” is to be read accordingly, and the power to impose a requirement to be detained is to be read as a power to impose that requirement on any one or more of the persons in the group in question.
(4) In regulation 5—
(a)in paragraph (1), the reference to “a person” is to be read in accordance with paragraph (3) of this regulation;
(b)in the rest of that paragraph, references to P are to one or more of the persons in the group in question.
(5) In regulation 8—
(a)in paragraph (1), the reference to “a person” is to be read in accordance with paragraph (3) of this regulation;
(b)in the rest of that regulation, references to P are to one or more of the persons in the group in question.