National Crime Agency officers have warned registered Hawaladars in the UK of the consequences of being involved in organised immigration crime. Hawala is a type of informal value transfer system that operates on a basis of transfer of value without actual movement of money. Hawaladar systems serve entirely legitimate purposes, but are known to be exploited by criminals looking to move criminal cash, including from people smuggling. Visits to 44 businesses across the UK were delivered by the NCA