4  Documents

4.1  The Consultant hereby grants (or, if such grant cannot legally take place until a later date, agrees to grant)  to the Authority with effect from the date of this Deed or in the case of Documents not yet in existence with effect from the creation thereof, a royalty-free non-exclusive licence (such licence to remain in full force and effect notwithstanding completion of the Consultant's obligations under the Appointment or the termination of the Appointment or the determination of the Consultant's engagement under it or any dispute thereunder or hereunder) to use and to reproduce all Documents for any purpose whatsoever connected with the Works and such other purposes as are reasonably foreseeable including, but without limitation, the execution, completion, maintenance, letting, advertisement, modification, extension, reinstatement and repair of the Works, and such licence will carry the right to grant sub-licences and will be transferable to third parties.  The Authority will not hold the Consultant liable for any use it may make of the Documents for any purpose other than that for which they were originally provided by it and other than for such other uses as are reasonably foreseeable unless the Consultant authorises such use and confirms the Documents are suitable for it. The Consultant will not grant to any third party the right to use any of the Documents save under any warranty it is obliged to give under the Appointment or hereunder or as otherwise required to enable it to fulfil its obligations under the Appointment.

4.2  The Consultant agrees on reasonable request at any time and following reasonable written prior notice to give the Authority or those authorised by it access to the Documents and to provide copies (including copy negatives and CAD disks) thereof at the Authority's expense.

4.3  The Consultant warrants to the Authority that he has used the standard of skill, care and diligence as set out in clause 3.1 to see that the Documents (save to the extent duly appointed sub- contractors have been used to prepare the same) are its own original work and that in any event their use in connection with the Works will not infringe the rights of any third party.