In the context of this case, what if an employee is not subject to immigration control and is unable to provide documentary proof of their right to work? (hcrlaw.com)
The insurance carrier will likely ask you to provide documentary proof, so don't try to make such a claim unless you can back it up. (insurify.com)
It covers property, bank accounts, pensions, income etc, all supported by documentary proof. (barristerforme.com)