reg 48 Undertaking to be responsible for expenses of the Foreign and Commonwealth Office
Every request for service filed under rule 46 (service through foreign governments, judicial authorities etc. ) must contain an undertaking by the person making the request— (a) to be responsible for all expenses incurred by the Foreign and Commonwealth Office or foreign judicial authority; and (b) to pay those expenses to the Foreign and Commonwealth Office or foreign judicial authority on being informed of the amount.