(1) In Schedule 8 to the Terrorism Act 2000, in paragraph 23(1) (grounds on which a review officer may authorise continued detention), after paragraph (b) insert-

"(ba) pending the result of an examination or analysis of any relevant evidence or of anything the examination or analysis of which is to be or is being carried out with a view to obtaining relevant evidence;".

(2) In sub-paragraph (1) of paragraph 32 of that Schedule (grounds on which a judicial authority may authorise further detention), for the words from "to obtain" to "preserve relevant evidence" substitute "as mentioned in sub-paragraph (1A)".

(3) After that sub-paragraph insert-

"(1A) The further detention of a person is necessary as mentioned in this sub-paragraph if it is necessary-

(a) to obtain relevant evidence whether by questioning him or otherwise;

(b) to preserve relevant evidence; or

(c) pending the result of an examination or analysis of any relevant evidence or of anything the examination or analysis of which is to be or is being carried out with a view to obtaining relevant evidence."