Robert - he does not. The form ID3 explains what's needed when verifying the identity and what information we then require. Page 1 states
You must also enclose with your application: • a copy of the personal details page of your passport • a copy of the personal details page of the passport of the person verifying your identity (Where the verifier verifies the identity of other people in addition to yourself, they must provide each person with a copy of their personal details page. A single copy for all persons is not acceptable.) Do not send us your original passport with your application.
PG 67 then supports that with wider guidance as appropriate -
Evidence of identity (PG67) - GOV.UK
Hope that helps