Proof of document signed by officers of court

Any document purporting to be signed by a judge or officer of a court in England or Northern Ireland shall, until the contrary is proved, be deemed to have been so signed without proof of the signature or judicial or official character of the person appearing to have signed it, and the officer of a court by whom a document is signed shall, until the contrary is proved, be deemed to have been the proper officer of the court to sign it.