The crime of double fraud mainly involves two problems: the
effectiveness of guarantee contract and the identification of bank property
loss. In terms of the validity of security contract, we should adopt the thought
of “criminal separation of the people”, and identify the cheating behavior
of the actor as the crime of contract fraud in criminal law, and identify the
security contract as the revocable contract in civil law. When it comes to the
problem of whether the bank suffers actual losses, we should avoid measuring
its pure economic value separately from the Angle of hindsight, but should
comprehensively determine the realization of the bank’s loan purpose, rights
and obligations, and risk expectation.