The Dairy Produce Quotas (Scotland) Regulations 2005

12.  The parties to the arbitration, and all persons claiming through them, shall, subject to any legal objection, submit to be examined by the arbiter on oath or affirmation in relation to the matters in dispute and shall, subject to any such objection, produce before the arbiter all samples, books, deeds, papers, accounts, writings and documents, within their possession or power which may be required or called for, and do all other things as the arbiter reasonably may require for the purposes of the arbitration.S