To convict someone in a criminal fraud case, it must be proved, beyond reasonable doubt that a dishonest act that caused deprivation was made with criminal intent.

• 如果要想证明被告的刑事诈骗罪，在不能凭借合理怀疑就定罪的原则下，证明导致受害者损失的这一不诚实行为存在刑事犯罪动机。