From BoyWiki

The International Criminal Police Organization, or INTERPOL, is an intergovernmental organization facilitating international police cooperation. INTERPOL's main tool for dealing with travelling sex offenders is the Green Notice, which is issued to provide warnings and criminal intelligence about persons who have committed criminal offences and are likely to repeat these crimes in other countries.[1] Interpol also manages the International Child Sexual Exploitation image database (ICSE DB).[2]