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(b) that over that period there was regularly supplied to the computer in the ordinary course of those activities information of the kind contained in the statement or of the kind from which the information so con- tained is derived;
(c) that throughout the material part of that period the computer was operating properly or, if not, that any respect in which it was not operating properly or was out of opera- tion during that part of that period was not such as to affect the production of the docu- meat or the accuracy of its contents; and
(d) that the information contained in the state- ment reproduces or is derived from infor- mation supplied to the computer in the ordinary course of those activities.
(3) Where over a period the function of storing or processing information for the purposes of any activities regularly carried on over that period as mentioned in paragraph (0) of subsection (2) was regularly performed by computers, whether-
(a) by a combination of computers operating
over that period: or
(b) by different computers operating in succes-
sion over that period; or
(c) by different combinations of computers operating in succession over that period: or (d) in any other manner involving the succes- sive operation over that period in whatever order, of one or more computers and one or more combinations of computers,
all the computers used for that purpose during that period shall be treated for the purposes of this Part as constituting a single computer; and references in this Part to a computer shall be construed accord- ingly.
(4) In any civil proceedings where it is desired to give a statement in evidence by virtue of this sec-
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tion, à certificate doing any of the following things. that is to say-
(a) identifying the document containing the statement and describing the manner in which it was produced;
(b) giving such particulars of any device in- volved in the production of that document as may be appropriate for the purpose of showing that the document was produced by a computer;
(c) dealing with any of the matters to which the conditions mentioned in subsection (2) relate,
and purporting to be signed by a person occupying a responsible position in relation to the operation of the relevant device or the management of the relevant activities (whichever is appropriate) shall be evidence of any matter stated in the certificate; and for the purposes of this subsection it shall be sufficient for a matter to be stated to the best of the knowledge and belief of the person stating it.
(5) For the purposes of this Part-
(4) information shall be taken to be supplied to a computer if it is supplied thereto in any appropriate form and whether it is so sup- plied directly or (with or without human intervention) by means of any appropriate equipment:
(b) where, in the course of activities carried on by any person, information is supplied with a view to its being stored or processed for the purposes of those activities by a com- puter operated otherwise than in the course of those activities, that information, if duly supplied to that computer, shall be taken to be supplied to it in the course of those activities;
(c) a document shall be taken to have been produced by a computer whether it was produced by it directly or (with or without human intervention) by means of any ap- propriate equipment.
(6) Subject to subsection (3), in this Part "computer" means any device for storing and pro-