IEIM112030 - Exchange of Information: Outward requests: Risk assessment
Requests can be made for information to assist with risk assessment.
They must satisfy the test of foreseeable relevance (IEIM101300) and be capable of producing a tax effect in the UK, and you must have exhausted your domestic powers to obtain the information, the guidance for which is at IEIM112300 -note in particular that there is an exemption where use of domestic means (such as asking the customer) would prejudice our enquiry powers.
Different forms of closer working with other jurisdictions can also be carried out to risk assess a customer alongside other tax authorities (IEIM130300).