Visa or immigration officers have a general obligation to take such steps as are necessary or appropriate to verify (see Z2.5) any documentation or information relevant to any decision under immigration temporary entry policy, whether or not a particular provision enables or obliges them to do so.
E7.5.1 Verification of identity
If there is reason to doubt the claimed identity of an applicant or the authenticity of identity document(s), visa and immigration officers must seek further information to verify identity and authenticity of the documents provided.
Effective 26/07/1999