The Evidence Act 1872 was replaced by the BSA 2023 (in force 2024-07-01); no verified section mapping on file for Section 69 — confirm the corresponding provision (savings: Section 170, BSA 2023).
If no such attesting witness can be found, or if the document purports to have been executed in the United Kingdom, it must be proved that the attestation of one attesting witness at least is in his handwriting, and that the signature of the person executing the document is in the handwriting of that person.