6.—(1) Subject to paragraph (2) the information or evidence required for the purposes of determining whether a person is capable or incapable of work is—
(a)where the own occupation test or the all work test applies, evidence of his incapacity for work in accordance with the Social Security (Medical Evidence) Regulations 1976(1) (which prescribe the form of doctor’s statement or other evidence required in each case);
(b)where the all work test applies, such information as the Secretary of State may request in the form of a questionnaire relating to a person’s ability to perform the activities referred to in the Schedule;
(c)such additional information relating to the relevant test as the Secretary of State may request.
(2) Where the Secretary of State is satisfied that he has sufficient information for a determination whether a person is capable or incapable of work without the information specified in paragraph (1)(b), that information shall not be required for the purposes of that determination.
(3) Where it has been determined that a person is to be treated as incapable of work under regulations 10 to 14 the information referred to in paragraph (1) shall not be required.
7.—(1) Where a person fails without good cause to comply with a request of the Secretary of State to provide the information referred to in regulation 6(1)(b) (all work test questionnaire) he shall, subject to paragraph (2), be treated as capable of work.
(2) A person shall not be treated as capable of work under paragraph (1) unless—
(a)at least 6 weeks have elapsed since the Secretary of State sent that person the first request for that information; and
(b)the Secretary of State has sent that person a further request at least 4 weeks after the first, and at least 2 weeks have elapsed since that further request was sent.
8.—(1) Where a question arises as to whether a person is capable of work, he may be called by or on behalf of a doctor approved by the Secretary of State to attend for a medical examination.
(2) Subject to paragraph (3) where a person fails without good cause to attend for or submit himself to such an examination, he shall be treated as capable of work.
(3) A person shall not be treated as capable of work under paragraph (2) unless written notice of the time and place for the examination was sent to him at least 7 days beforehand, or unless he agreed to accept a shorter period of notice.
9. The matters which are to be taken into account in determining whether a person has good cause under regulation 7 or 8 (failure to provide information or attend a medical examination) shall include—
(a)whether he was outside Great Britain at the relevant time;
(b)his state of health at the relevant time; and
(c)the nature of any disability from which he suffers.