How is this supposed to work procedurally? Presumably the interception is initiated by civilian ATC calling the air force who then scramble the fighter(s) – or do the air force intercept on their own initiative? Then during the interception, presumably the fighter leader is talking to his military control and/or to civilian ATC to tell them what he sees? Afterwards, do ATC or air force send a report to the interceptee's operator (Jet2 in this case) or national authority?
Would this be an incident that either BEA or AAIB, or both, would take notice of?