Can I be arrested based solely on a Diffusion if no Red Notice exists?

Absolutely. Diffusions are entered into national law enforcement databases and trigger border alerts in most Interpol member states. Arrest authority derives from the receiving country’s domestic law, not from Interpol itself. In jurisdictions like the UAE, Turkey, and Thailand, immigration officials routinely detain individuals flagged by Diffusions pending verification with the issuing NCB. Detention periods vary — typically 24–72 hours for initial holding, but provisional arrest for extradition purposes can extend to 40–60 days depending on the bilateral treaty in force.