What should I do if I tear up my pass or passport in Hong Kong or abroad?

You are an illegal immigrant, an illegal family. If you go abroad, you will go to that country. When you enter, the staff will scan your passport and you will have entry registration. Similarly, you will also have exit registration when you leave the country.

If you are found by the police within the validity period of the visa, you can say that you have lost your passport. If it exceeds the validity period, the police will know that you are a stowaway when they check online, and contact the embassy to repatriate and leave a blacklist.