not issuing a NOTOC for experdite baggage is not complacent and is not required as standard practice. All is required is a copy of the unacompanied baggae manifest which has been signed by the security operative to say it has been screened in accordance to rules and regulations of the DFT, it also has to be noted on your "Triple A"
If you think that bag is still a security risk it would be your responsability as an Appointed Person in my eyes to remove it off an aircraft as it should not travel.