More than 40,000 yuan of defrauded property is a criminal case, and the fraudster is suspected of fraud. The victim should report the case to the public security organ in time, investigate the criminal responsibility of the fraudster according to the criminal law and relevant laws, and return the legitimate property of the victim in time.

Legal basis:

Article 266 of the Criminal Law stipulates that whoever defrauds public or private property in a relatively large amount shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance, and shall also or only be fined; If the amount is huge or there are other serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than ten years and shall also be fined; If the amount is especially huge or there are other especially serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than 10 years or life imprisonment, and shall also be fined or confiscated. Where there are other provisions in this Law, such provisions shall prevail.

Article 64 Disposal of criminal articles All property illegally acquired by criminals shall be recovered or ordered to make restitution; The lawful property of the victim shall be returned in time; Contraband and personal articles used in crimes shall be confiscated. Confiscated property and fines shall be turned over to the state treasury and shall not be misappropriated or disposed of by themselves.

Second, according to the Interpretation of the Supreme People's Court on Several Issues Concerning the Specific Application of Law in the Trial of Fraud Cases, in order to punish fraud criminal activities according to law and protect the ownership of public and private property, according to the relevant provisions of the Criminal Law and the Criminal Procedure Law, combined with the needs of judicial practice, some issues concerning the specific application of law in handling fraud criminal cases are now explained as follows:

Article 1 Whoever swindles public or private property in an amount of over 3,000 yuan, over 30,000 yuan, over 100,000 yuan and over 500,000 yuan shall be deemed as "large amount", "huge amount" or "especially huge amount" as stipulated in Article 266 of the Criminal Law respectively.

The higher people's courts and people's procuratorates of all provinces, autonomous regions and municipalities directly under the Central Government may, in combination with the economic and social development of the region, jointly study and determine the specific amount standards implemented in the region within the scope of the amount specified in the preceding paragraph, and report them to the Supreme People's Court and the Supreme People's Procuratorate for the record.