What is Red and blue corner notice?

The 'B' series notices are also called 'enquiry notices' and may be issued in order to have someone's identity verified; to obtain particulars of a person's criminal record; to locate someone who is missing or is an identified or unidentified international criminal or is wanted for a violation of ordinary criminal law and whose extradition may be requested.

If it is considered necessary to make a request for publication of a 'B' series (blue) notice against any person for any of the reasons mentioned above, the requesting authorities should furnish the detailed information mentioned in para 6 above. If the notice is required to be published in respect of a missing person, the detailed account of disappearance of that person should also be mentioned. Once the notice is considered to be no longer valid, Interpol should be notified for issue of a cancellation notice.