What happens if I am detained at a US port of entry based on a Red Notice but no extradition request exists?

Without a formal extradition request or provisional arrest warrant from the requesting country, US authorities cannot lawfully hold you for extradition purposes. CBP may detain you briefly for questioning and verification — typically several hours — but must release you absent independent US criminal grounds or a valid treaty-based arrest request. However, the requesting state may use this detention window to expedite a provisional arrest request through diplomatic channels. Immediate access to counsel during this period is critical to prevent prolonged detention and to document any procedural violations that may support subsequent CCF proceedings.