Can anyone of you pilot's give me a reference that the PIC has full authority and that it is his/her responsibility to give the final decision during a hijack incident regarding what to do in case of confronting anykind of threat. I've read ICAO Annex 17 and IATA Security Manual and searched the web for guidelines, regulations and procedures for unlawful interference, hijacking etc. but have not found anything where it is been stated that the PIC has full authority.