Information about wanted persons such as red notices or diffusion notices is available to the police services of the countries to which they are sent. Depending on the national characteristics of the legal systems, such information may also be available to a number of other services (customs, border guards, various law enforcement agencies, etc.). As a rule, when information about an internationally wanted person is revealed, the person must be immediately detained for subsequent transfer (extradition) to the requesting country. The extradition procedure will be determined by the relevant legal regulation in each individual state. However, it is worth considering that in some cases a person can be detained even without undergoing border or police checks. For example, according to the laws of many countries, when checking into a hotel, the guest's data is automatically transferred to the police. Moreover, a person can be detained within the framework of international cooperation between police services.