Witness 15. Where any law requires the signature of a witness on a document, the requirement of the law is fulfilled, if the document is in the form of an electronic message, by an electronic signature of the witness which complies with the requirement of section 13. Original 16. (1) Where any law requires any document to be in its original form, the requirement of the law is fulfilled by a document in the form of an electronic message if – (a) there exists a reliable assurance as to the integrity of the information contained in the electronic message from the time it is first generated in its final form; and (b) the electronic message is accessible and intelligible so as to be usable for subsequent reference. (2) For the purposes of subparagraph (1)(a) – (a) the criteria for assessing the integrity of the information shall be whether the information has remained complete and unaltered, apart from the addition of any endorsement or any change which arises in the normal course of communication, storage and display; and (b) the standard of reliability required shall be assessed in the light of the purpose for which the document was generated and in the light of all other relevant circumstances. 11