Is there a signature, a handprint and no ID card to sue?

Of course. Just make sure who it is. Debt is still a civil dispute. If you bring a lawsuit to the court, you won't be sentenced, but the people's court will decide to repay the debt within a time limit. The premise of sentencing is that it constitutes a criminal offence, while general debt disputes, regardless of the amount, are only in the category of civil disputes and will not lead to the debtor's criminal responsibility. Constitute a criminal offence may involve several situations:

First, it depends on the reasons for the formation of debt. If the debtor forms a debt in the name of borrowing money for the purpose of illegally possessing the creditor's property, it may actually be suspected of constituting a criminal offence. However, if it is a normal debt relationship, such as borrowing money, it does not constitute a criminal offence if it is unable to pay off debts due to business operations.

Second, if the debt trip involves raising funds from most unspecified people, it may be suspected of constituting the crime of fund-raising fraud.

Three, assuming that after the creditor sued, the debtor refused to repay the debt by evasion, which may constitute a crime of refusing to execute the judgment.

Legal basis:

People's Republic of China (PRC) Civil Procedure Law

Article 214 Where a creditor requests the debtor to pay money or securities, it may apply to the grassroots people's court with jurisdiction for a payment order if the following conditions are met: (1) There is no other debt dispute between the creditor and the debtor; (2) Payment orders can be served on the debtor. The application shall specify the amount of money or securities required and the facts and evidence on which it is based.

Article 215 After an application is filed by a creditor, the people's court shall notify the creditor whether to accept it or not within five days.

Article 216 After the people's court accepts the application, if the facts and evidence provided by the creditor are clear and legal, it shall issue a payment order to the debtor within 15 days from the date of acceptance. If the application is not established, the ruling shall be rejected. The debtor shall pay off the debt within fifteen days from the date of receiving the payment order, or file a written objection with the people's court. If the debtor fails to raise any objection or perform the payment order within the period specified in the preceding paragraph, the creditor may apply to the people's court for compulsory execution.