IHTM13014 - Investigation of form IHT401: Service
If the claimed non-UK domicile has been accepted by Risk you can accept the domicile as claimed.
Remember that spouse or civil partner exemption (IHTM11032) is restricted if, at the date of transfer, the transferor was domiciled in the UK but their spouse or civil partner was not (IHTM13031). If spouse or civil partner exemption is restricted, Risk will note this on the COMPASS record.
If there is any reason to believe that a surviving spouse or civil partner was not domiciled in the UK at the date of death and this has not been identified by Risk, refer the papers to the Service Technical Support.